You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: I am Debra Robinson. I am planning to go for round trip to Los Angeles, CA - LAX, can you help me in booking a flight ticket?

ASSISTANT: Sure, I can help you. Can I know your travelling dates?

USER: My departure day is 03/04, return day is 03/06.

ASSISTANT: Do you need any break?

USER: Yes, I need a halt.

ASSISTANT: We found  a Delta airline, flight number:1011 and the price is 100.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.