You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: I am planning to book a ticket from IAD to DEN. Can you please help me out?

ASSISTANT: Sure. Tell me your travel dates and connection limit please?

USER: I would like to travel on June 26 and return back on June 28.

ASSISTANT: Ok. Give me your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for your patience. I have found American airlines which is a stopover flight.

USER: That's fine, please proceed the booking.

ASSISTANT: May I know your name please?

USER: I am Stephanie Green.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1023.

USER: Thank you for your service.

ASSISTANT: Thank you.