You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to travel from DEN to DTW. Can you help me in booking a flight ticket?

ASSISTANT: Sure. May I know your name please?

USER: I am Timothy Perez.

ASSISTANT: Are you looking for a flight with a lay-by option?

USER: I am looking for a connecting flight.

ASSISTANT: Tell me your travel dates please?

USER: I want to fly in the flight on Mar 11 and Mar 13.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Thanks for waiting. I have found Frontier airlines which is a flight with a lay-by option flight.

USER: Proceed to booking.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1011.

USER: Thank you for helping me out.

ASSISTANT: Thank you.