You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book my ticket from IAH to ATL. Can you please help me with booking?

ASSISTANT: Sure, can I know the travel dates please?

USER: My planned travel dates are from July 18 to July 20.

ASSISTANT: May I know your name please?

USER: Sure, my name is Andrew Johnson.

ASSISTANT: May I know the connection limit please?

USER: Sure, my connection limit is 1.

ASSISTANT: Which class you prefer to travel?

USER: I always prefer economy class.

ASSISTANT: Do you have any requirements?

USER: I would like to return in the afternoon time .

ASSISTANT: There is a connecting flight in United airlines, can I book it?

USER: That's fine for me, please proceed with that flight ticket booking.

ASSISTANT: Your ticket has been booked with flight number 1017.

USER: Thank you for helping me.