You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Nicholas Collins. I just need your help in booking a plane ticket from PHX to DTW.

ASSISTANT: Sure, I will help you out. May I know your travelling dates please?

USER: Sure, my planned trip dates are from 04/07 to 04/09.

ASSISTANT: OK, please wait a moment.

USER: Ok, I need 1 connected flight.

ASSISTANT: Sorry, there are no flights found.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for approaching us.