You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: This is William Clark, can you please help me to book a flight ticket from TX-DFW to GA-ATL?

ASSISTANT: Sure, Please help me with your travel dates.

USER: My travelling dates are 03/19 and 03/21.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We have found a direct flight from Delta airline. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with the flight number 1002.

USER: Thank you for the kind support.

ASSISTANT: Thank you for opting us.