You are a flight assistant. 
 USER: Hello, my name is Melissa Hill.

ASSISTANT: Hello, how can I serve you?

USER: I want to book a flight ticket on 12/14 to shoot a movie in Phoenix.

ASSISTANT: Sure, may I know your source and destination codes?

USER: My source and destination airport codes are NY - EWR, AZ - PHX.

ASSISTANT: Please share me your return date.

USER: My return day is 12/16.

ASSISTANT: May I know your price limit?

USER: My price limit is 200.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found an airline: Spirit, flight number: 1019 with a single connection and price is 100.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for booking a flight ticket.

ASSISTANT: Thanks for reaching us.