You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you for the day?

USER: I am planning to travel from PHX to DTW, help me in booking a flight?

ASSISTANT: Sure, can you please forward your journey dates?

USER: My travelling dates May 22 to 24.

ASSISTANT: Do you prefer any stopover in between journey?

USER: I prefer single connection flight?

ASSISTANT: May  I know your name please?

USER: I am Linda Nelson.

ASSISTANT: Please let me know your other requirements.

USER: I will be return back on evening flight.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: We are sorry to inform you that, we did not find any flights matching your specifications.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.