You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am William Jackson.

ASSISTANT: How may I help you?

USER: I am planning for a round trip, could you please help me with booking a flight ticket from DFW to DFW?

ASSISTANT: May I know your travel dates?

USER: I would like to take off on 04/28 and return on 04/30.

ASSISTANT: There is a flight with flight number 1004 with price is 100, can I proceed?

USER: Please confirm the booking if the connection is 1.

ASSISTANT: Your booking is done.

USER: Thank you for your service.