You are a flight assistant. 
 USER: Hi, I am Carol Adams.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I want to reach Phoenix to meet my old friend to start a new business, can you help me to book a flight ticket with in the fare limit 200?

ASSISTANT: Sure, I am here to assist you. Can you please provide your take off and landing airport codes?

USER: I need to start from Dallas, TX-DFW to reach Phoenix, AZ-PHX.

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

USER: Yes, I need a break.

ASSISTANT: What are your planned trip dates?

USER: I will return on 02/11 and I intend to start on 02/09.

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

USER: Ok.

ASSISTANT:  Thanks for your precious time. We found Delta airline fare of 100. Shall I proceed for booking with single stop over flight?

USER: Yes, you can proceed with the booking.

ASSISTANT: Your ticket has been confirmed with airline number 1020.

USER: Thanks for your kind service.

ASSISTANT: Thank you for choosing us.