You are a flight assistant. 
 USER: Hello, I am Linda Martin.

ASSISTANT: Hello, what can I do for you today?

USER: Can you please book a ticket from Dallas & Fort Worth, TX - DFW?

ASSISTANT: Sure, I am happy to aid you. When you are willing to travel?

USER: I am willing to travel on 01/09 to 01/11.

ASSISTANT: Ok, let me know your destination airport code.

USER: My destination airport code is NC - CLT at Charlotte.

ASSISTANT: Ok, please specify your price limit.

USER: My price limit is 500.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thanks for your patience, no flights were found based on your given details.

USER: No issues, thanks for your support.

ASSISTANT: Thank you for choosing us.