You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I have to reach Denver to meet friend over there so please help me with flight ticket booking from Chicago.

ASSISTANT: Please provide me with the airport codes?

USER: Sure, ORD and DEN are the airport codes of my travelling locations.

ASSISTANT: Please provide me with the itinerary dates.

USER: Sure, I have planned my travel dates as Dec 27 and Dec 29.

ASSISTANT: I there any connection limit?

USER: I am looking for single connecting flight so please make sure that.

ASSISTANT: May I know the class preference?

USER: Sure, I would prefer business class to travel due to some health issues.

ASSISTANT: Are there any more  preferences?

USER: No, I am ok with any airlines to travel.

ASSISTANT: May I know your name please?

USER: Sure, myself Jennifer Perez.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

ASSISTANT:  We have found a flight in economy class with 1 connection in Hawaiian  airlines with flight 1021 and the fare of your flight will be 600. Do you like me to proceed your booking with this flight?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.