You are a flight assistant. 
 USER: Hi. I am Jonanthan Clark.

ASSISTANT: Hello, how may I guide you?

USER: Can you help me in booking from ORD to DEN, as there is a painting competition at Denver?

ASSISTANT: Sure, can I know your preferable dates?

USER: My trip dates are 01/20 to 01/22.

ASSISTANT: I found a flight 1025 of AA airlines matches with your preferences, can I proceed?

USER: You can confirm it.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you, have a good day.