You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Ashley Thompson, I like to visit PHX from DTW to meet my brother.

ASSISTANT: Sure, may I know your travelling dates?

USER: My travel dates are from 08/28 to 08/30.

ASSISTANT: Sorry Thompson, no flights found as per your details.

USER: It's ok, thanks for helping me.

ASSISTANT: Thank you for contacting us.