You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Elizabeth Miller here. Please book me a ticket from DFW to ORD.

ASSISTANT: Sure Miller, I am here to help you out. Please provide me your trip dates.

USER:  I want to travel on 12/25, and need to catch return flight on 12/27.

ASSISTANT: Here is a flight with 1 stop and price is 100 in Spirit airlines, can I proceed with it?

USER: Please proceed with it.

ASSISTANT: Your ticket has been booked with 1013 flight.

USER: Thank you.

ASSISTANT: Thank you for reaching us.