You are a flight assistant. 
 USER: Hello, I am Samuel Williams.

ASSISTANT: Hello, how may I help you at this moment?

USER: I need to attend an interview in Dallas, so could you please help me out to book a ticket to Dallas?

ASSISTANT: Sure, I will help you. Can I have your travelling dates please?

USER: Sure, I would like to go on 07/31 and return back on 08/02.

ASSISTANT: Please provide your nearby airport codes.

USER: My origin and destination airport codes are IAH and DFW.

ASSISTANT: There is a single connection flight available with JetBlue airline, shall I book it?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is done with flight number 1005 and it's cost is 100. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a nice day.