You are a flight assistant. 
 USER: Hello. I am Debra Davis.

ASSISTANT: Hello, how can I aid you?

USER: I need to take a main role in  the meeting which is organised by the helping hand trust. Help me in booking my flight ticket from Dallas to Charlotte.

ASSISTANT: Sure, may I know when you want to travel?

USER: I want to travel on 04/30 to 05/02.

ASSISTANT: Ok, please share your journey codes.

USER: My source is TX-DFW, my landing airport code is NC-CLT.

ASSISTANT: Please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to say no flights found with your details.

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching us, have a nice day.