You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I have planned to book a plane ticket to attend my cousins marriage event, can you assist me in booking my ticket from CLT to DTW?

ASSISTANT: Ok, I am here to help you with that. Can I know your itinerary dates?

USER: My preferred dates are June 14th and June 16th.

ASSISTANT: May I know your depart and return timings?

USER: My return time must be afternoon.

ASSISTANT: Is there any other requirements?

USER: I need single connection between my trip.

ASSISTANT: Can I know your good name?

USER: Elizabeth Lee.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there are no flights available based on your travelling dates.

USER: No problem, thank you for searching.

ASSISTANT: Thank you for reaching us.