You are a flight assistant. 
 USER: Hi. I am Amy Green.

ASSISTANT: Hello, how can I serve you today?

USER: I need a connecting flight to Austin, AUS on 05/04. Please check a flight under 500?

ASSISTANT: Sure, let me know your source airport code.

USER: Boston, BOS is my source airport.

ASSISTANT: When do you plan to return?

USER: My return date is 05/06.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: We found a Delta airline with flight number 1027 and price is 200 matching your specifications.

USER: Perfect, please proceed to booking.

ASSISTANT: Your reservation has been confirmed.

USER: Thanks a lot for the kind help.

ASSISTANT: Thank you for choosing us.