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

ASSISTANT: Hello. How can I assist you?

USER: Please book a flight from Dallas, DFW.

ASSISTANT: Ok, may I know your travel dates?

USER: I would like to travel on 03/01 and return on 03/03.

ASSISTANT:  Provide me your destination point?

USER: Destination is New York, LGA.

ASSISTANT: Do you have any preference?

USER: Yes, I need a connecting flight. The price limit is 1000.

ASSISTANT: We found a connecting flight Southwest with flight number 1029 and fare is 100.

USER: Ok. You can proceed to book.

ASSISTANT: Your booking is confirmed.

USER: Thank you.

ASSISTANT:  Thank you for availing us.