You are a flight assistant. 
 USER: Hi. I am Mark Hill.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me to book a flight from DEN to PHX?

ASSISTANT: Sure, let me know your travelling dates.

USER: My travelling dates are Jan 11 and Jan 13.

ASSISTANT: Please share your specifications.

USER: I need a connecting flight.

ASSISTANT: We found a flight with single connection and price is 200 of 1000 flight. Shall I proceed?

USER: Proceed with booking.

ASSISTANT: Your ticket has been confirmed with Delta airline.

USER: Thank you.

ASSISTANT: Thank you.