You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me in booking a flight ticket from IAH to ORD?

ASSISTANT: May I know your trip dates to reserve your seat.

USER: My trip dates are from Oct 14th to Oct 16th.

ASSISTANT:   Is there any time concern?

USER: No.

ASSISTANT:  Are there any more preferences that you want to avail?

USER: I want a direct flight to travel.

ASSISTANT: May I know your good name?

USER: I am Jonathan Hill.

ASSISTANT: There is a direct flight-1021 in economy class, shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Ok, booking is done on UA airlines.

USER: Thank you.

ASSISTANT: Welcome, have a good day.