You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Andrew Garcia.

ASSISTANT: Garcia, how can I assist you?

USER: Please book a flight ticket on dates 12/12 and 12/14.

ASSISTANT: May I know your airport codes?

USER: My airport codes are NV-LAS and NY-JFK.

ASSISTANT: Please hold on for a while.

USER: Ok.

ASSISTANT: Southwest airlines with flight 1028 is available on your route with a connecting flight and ticket costs you 400 in economy class.

USER: Please proceed with booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.