You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: My name is Mark Davis, I want to book a flight from San Francisco to meet my brother at Denver. Can you book a flight for me?

ASSISTANT: Sure, may I know on which dates you are planning to make your journey?

USER: I will fly on Jan 17th and return on Jan 19th.

ASSISTANT: Can you please let me know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a direct flight with Spirit airlines, flight number 1018 and the fare of 200. Shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been reserved in economy class.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.