You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I aid you for a day?

USER: I had a Coco-Cola factory in Denver, DEN, so I had a work there, so please help me to book a flight ticket from DCA.

ASSISTANT: Sure, I am happy to aid you to book a flight ticket. Can you provide your travelling dates?

USER: My travelling dates should be 03/28 and 03/30.

ASSISTANT: Here is a flight based on your preferable dates with 1 connection limit and costs 100. Shall I proceed for the booking?

USER: Please book a ticket with name Virginia Turner.

ASSISTANT: Sure, I have done booking of the flight 1014 on your name.

USER: Thank you for aiding me.

ASSISTANT: Thank you a lot for contacting our service.