You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: My name is Dorothy Collins. I am looking to book a flight ticket to meet my friend in Phoenix. Can you help me for booking a flight ticket from DTW to PHX?

ASSISTANT: Sure, let me know your trip dates?

USER: My travelling dates are June 18 and June 20.

ASSISTANT: May I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Can you please share your depart and arrival time?

USER: My return time is evening.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for availing us.

USER: Welcome.