You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Hall.

ASSISTANT: How can I assist you today?

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

ASSISTANT: Sure, please mention your travelling dates.

USER: I am travelling on these dates 01/27 and 01/29.

ASSISTANT: Will you provide your airport codes please?

USER: I am flying from LAX 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 1021.

USER: Thank you for your services.

ASSISTANT: Welcome, have a great day.