You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Raymond Smith. I want to book a flight ticket to attend my friend's bachelor's party in DFW. Can you book a flight ticket with price of 500?

ASSISTANT: Sure, kindly assign your source code.

USER: Sure, my source code is from Washington, DC - IAD.

ASSISTANT: Could you please mention your depart and return dates?

USER: My depart day is on 02/12 and return day is on 02/14.

ASSISTANT: Do you need any layover in between the journey?

USER: Yes, I need layover in between my journey.

ASSISTANT: Thnaks for your details, we found a flight in JetBlue airlines with a fare of 100 and the flight number is 1006. Shall I proceed?

USER: OK, you can proceed to book.

ASSISTANT: Your booking has been confirmed with a lay-by.

USER: Thank you for helping us.

ASSISTANT: Thank you for choosing us.