You are a flight assistant. 
 USER: Hello, I am Christopher Lopez.

ASSISTANT: Hello, how may I help you today?

USER: I want to meet my old friends at Dallas & Fort Worth, TX - DFW. Can you please help me with book ticket on 11/09.

ASSISTANT: Sure, we are rapturous to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off airport code?

USER: Sure, my take off air port code is Phoenix, AZ - PHX.

ASSISTANT: When would you like to return from Dallas?

USER: I would like to return on 11/11.

ASSISTANT: We found a connecting flight with Delta airlines, flight number 1003 and the fare of 100.

USER: OK, please proceed to book.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for reserve the ticket.

ASSISTANT: Thank you for approaching us.