You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need to attend an interview, can you please book a ticket from LAS to CLT?

ASSISTANT: Sure, can you let me the planned travel dates?

USER: Sure, my planned departure and return travel dates are 18th and 20th of April.

ASSISTANT: Is there any class preference?

USER: No, I'm ok with any class.

ASSISTANT: May I the airline preference?

USER: I don't have airline preference.

ASSISTANT: Would you let me know the connection limit?

USER: Yes, my maximum connection has to be 1.

ASSISTANT: Are there any more preferences to avail?

USER: No, I don't have any other preferences.

ASSISTANT: May I know your name please?

USER: Yes, my name is John Roberts.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Frontier Airlines with flight 1015 is providing service on your route with single connection and the cost is 100.

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Your ticket is booked in the economy class where departure LAS 16:00 hours Apr 18 and arrival CLT 14:00 hours Apr 20.

USER: Thank you so much for your help.

ASSISTANT: Thank you for reaching us.