You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am Melissa Green from Detroit. I would like to meet my uncle at Phoenix, will you help me in booking the flight ticket from DTW to PHX?

ASSISTANT: Sure, we are here to help you. Kindly share your travel dates.

USER: My travelling dates are Feb 28 and  Mar 01.

ASSISTANT: How much you can pay for this ticket?

USER: I will pay up to 1000 .

ASSISTANT: Ok, please wait.

USER: Sure, I will wait.

ASSISTANT: Sorry to inform, no flights found with your requirement.

USER: Ok, not a problem. Anyway, thank you for the information.

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

USER: Thank you for searching.