You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: My name is Thomas Brown.

ASSISTANT: Thanks for providing your name.

USER: I want to book a flight ticket from Dallas & Fort Worth, TX - DFW to San Francisco, CA - SFO.

ASSISTANT: OK, to proceed for booking, we need to know your travelling dates?

USER: Sure, depart on 01/01 and return on 01/03 and make sure that the price limit is 500 with one connection only.

ASSISTANT: OK, please wait for a moment I will check the status and return back to you.

USER: OK.

ASSISTANT: Thanks for waiting, we are happy to say that, there is a flight found based on your requirements. Shall I proceed for booking a ticket?

USER: OK, you can proceed.

ASSISTANT: Your ticket has been confirmed with the AA airline and the flight number is 1026.

USER: Thank you.

ASSISTANT: It's been my pleasure to help you.