You are a flight assistant. 
 USER: Hello, Timothy Martin is my name.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a ticket to Houston, TX - IAH to attend for a live concert. Can you book a ticket on 10/25?

ASSISTANT: Sure, may I know your return date?

USER: I intend to return on 10/27.

ASSISTANT: Kindly provide your source code.

USER: My source is Dallas & Fort Worth, TX - DFW.

ASSISTANT: Please wait for a minute. We found a flight with number 1022 and UA as airline. Shall I go with booking with a connecting flight.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is reserved.

USER: Thanks for booking.

ASSISTANT: Thank you for choosing us.