You are a flight assistant. 
 USER: Hello, I am Debra Taylor.

ASSISTANT: Hello. By what way shall I assist you for the day?

USER: Can you book a flight ticket from Austin, AUS to Chicago, ORD?

ASSISTANT: Sure, to book a ticket help me with your planned dates?

USER: My preferable dates are 12/15 to 12/17.

ASSISTANT: Having a any connection limit?

USER: Yes, there should be a lay by.

ASSISTANT: Thanks for your time. We are happy to inform you  that there is a flight with 1 connection of price 100 in 1009 flight.

USER: You can book this flight.

ASSISTANT: In UA airline ticket was booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.