You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I oblige you today?

USER: I need to reach DEN to submit my project report in my office. Can you book me a ticket from ATL?

ASSISTANT: Sure, we can help with that. When do you want to fly?

USER: I will start on May 19th.

ASSISTANT: When do you want to return on?

USER: I will come back on May 21.

ASSISTANT: Do you prefer a connecting flight?

USER: Yes, I need 1 flag stop.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: I am Sharon Martin.

ASSISTANT: Please hold a moment, while I check the availability of flights.

USER: Sure.

ASSISTANT: Thank you for waiting. We hardly tried to find a flight with the given details, but there are no flights found with the given route.

USER: That's alright, thanks for the information.

ASSISTANT: Thank you for choosing us.