You are a flight assistant. 
 USER: Hello. I am Nancy Nelson.

ASSISTANT: Hello, How can I help you today?

USER: 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 200?

ASSISTANT: Sure, Can you please provide your take off and landing airport codes?

USER: My source code is LAX and destination is DFW.

ASSISTANT:  Do you prefer any halt in between your journey?

USER: I need a halt in between the journey.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My travelling dates are 11/21 and return on 11/23.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for your precious time. We found Frontier airline fare of 100. Shall I proceed for booking with a direct flight?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed with airline number 1007.

USER: Thank you.

ASSISTANT: Thank you for reaching us.