You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to book a ticket from IAD to HOU, can you please book me a ticket?

ASSISTANT:  can you please provide your trip dates?

USER: My journey dates are 03/27 and 03/29.

ASSISTANT:  Please wait a moment.

USER: Please make sure that the connection limit should not exceed 1, and my price limit is 100.

ASSISTANT: Your required details are matched with one flight ticket. Shall I proceed?

USER: That's great, you may proceed booking.

ASSISTANT: May I know your name for booking purpose?

USER: Well, my name is Mark Scott.

ASSISTANT: Ok. Your flight ticket is booked, flight number is 1019 and airline is AA.

USER: Sure, thank you for the details and booking my ticket.

ASSISTANT: You are welcome.