You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I need to travel from DEN to IAD, can you help me with that?

ASSISTANT: Sure, let me know your travel dates please?

USER: My trip dates are 10/15 and 10/17.

ASSISTANT: May I know your connection limit?

USER: I need a single connection.

ASSISTANT: Do you need any other preference?

USER: No.

ASSISTANT: Can I know your name please?

USER: I am Ronald Nelson.

ASSISTANT: Delta Airlines is providing direct flight with the ticket fare of 200. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket has been confirmed by flight number 1015 in economy class.

USER: Thank you for that.

ASSISTANT: Thanks for choosing us.