You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Christopher Harris.

ASSISTANT: Nice to meet you.

USER: I would like to book a ticket to Chicago, can you please help me out in booking?

ASSISTANT: Sure, will you provide your travelling dates please?

USER: I am travelling on these dates 08/28 and 08/30.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: I am flying from DEN to ORD.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: There is a flight with price 100 and the connections 1 is available.

USER: Ok, you can proceed with this flight.

ASSISTANT: Your ticket is booked. the flight number is 1023.

USER: Thank you for your services.

ASSISTANT: Welcome, have a great day.