You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I need to book a flight ticket from PHX to DEN, can you help me in booking a flight ticket?

ASSISTANT: Sure, on which dates would you like me to book a flight ticket for you?

USER: Sure, my journey dates are Mar 19 and Mar 21.

ASSISTANT: Is there any connection limit?

USER: I prefer maximum one connection.

ASSISTANT: Please let me know if you have any other requirements.

USER: No more specifications.

ASSISTANT: May I know your name?

USER: Sure, Donna Jones here.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found an economy class ticket in Spirit Airlines with flight number 1000 having a single connection. Shall I reserve your ticket?

USER: Yes, you can.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for approaching us.