You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me in reserving my flight from DTW to reach PHX, as I have a meeting with my colleagues regarding company issues?

ASSISTANT: Sure, can you please share your travel dates?

USER: Thank you for the response, my travelling dates are Apr 25th and Apr 27th.

ASSISTANT: May I know your connection limit?

USER: I prefer a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I don't have any other preferences.

ASSISTANT: Ok, please let me know your name to proceed further.

USER: Mary Martin is my name.

ASSISTANT: Ok, please be on hold.

USER: Ok, sure.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for choosing us.