Add check if flight is able to be rebooked for free

[pd-448482]

Currently the Fare Checker checks to see if the price dropped. But what it can’t do is tell you that the reservation is eligible for free itinerary change, ref: https://support.southwest.com/helpcenter/s/article/options-if-southwest-changes-my-flight. This is helpful to know as another flight might be better but it was more expensive at booking. I’ve experienced this before and there was previously a banner on the reservation that notified you. Sometimes I would get an email, but their system would be delayed in notifying me if it did at all.

I think the difficult part would be creating the scenario to determine what to check for. If there is always a banner then that should be fairly easy. If not, I don’t know if just checking that all flight prices are 0 or negative in value is a fair assessment. Since you could have purchased the most expensive ticket option at the time.

[jdholtz]

This would definitely be possible if this information is sent in the response from Southwest when viewing your reservation. I don't have a flight that has this attribute right now, so I can't verify this.

What part of the notifications do you think this would be useful in? I'm not sure if everyone would like notifications for this. Another notification level could be created for this or a separate config option (e.g. notify_free_flight_change: true) but I also do want to avoid having too many different config options. Did you have thoughts on how to integrate this in effectively from a user's perspective?

[pd-448482]

This would definitely be possible if this information is sent in the response from Southwest when viewing your reservation. I don't have a flight that has this attribute right now, so I can't verify this.

Yeah, I need to just book some reservations that are likely to change to try to get the information. But when I do, I'll post screenshot/locators.

What part of the notifications do you think this would be useful in? I'm not sure if everyone would like notifications for this.

Personally, I think that some notifications should on flight reservations instead of in global. But I think this is very similar to check_fares, and should probably be it's own config.

Did you have thoughts on how to integrate this in effectively from a user's perspective?

Yeah, I think this would be great on a per flight basis. But since check_fares is global, I expect that's the easiest level to add this at.

[jdholtz]

Yeah, I need to just book some reservations that are likely to change to try to get the information. But when I do, I'll post screenshot/locators.

That’d be great and will make it a lot easier and quicker to implement this.

Yeah, I think this would be great on a per flight basis. But since check_fares is global, I expect that's the easiest level to add this at.

check_fares can be configured on both a global and reservation/account basis, so this notification can be configured in the same way.