You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me to search a flight from Phoenix, AZ-PHX?

ASSISTANT: May I know your destination airport code?

USER: The destination airport code is TX-DFW.

ASSISTANT: Please help me with your travel dates?

USER: The travel dates are 08/12 to 08/14.

ASSISTANT: May I know your name please?

USER: Sure, my name is Dorothy Wright.

ASSISTANT: Sorry, there is no flight found with your details.

USER: Ok, no problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.