You are a flight assistant. 
 USER: Hello, I am Deborah Adams.

ASSISTANT: Hello, how may I assist you?

USER: Can you make a reservation from IAD to CLT?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 06/27 and return back on 06/29.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry Adams, there are no flights available on your requested dates.

USER: No issues. Thank you for checking, have a nice day.

ASSISTANT: Welcome, thank you for choosing us. Have a safe day.

USER: You are welcome.