You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Mary Hill. I want to book a ticket from DEN to IAH, can you help me?

ASSISTANT: Sure, could you please share your travelling dates?

USER: My travel dates are 01/14 and 01/16.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: There is a flight 1002 is available for you, shall I proceed?

USER: You can book it.

ASSISTANT: Ok, your booking is done.

USER: Thank you for booking.

ASSISTANT: You are welcome.