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

ASSISTANT: Hello. How can I aid you?

USER: I am planning to visit Coors field in Denver with my college friend. Could you please assist me in booking a flight ticket?

ASSISTANT: Sure, I can help you. Can I know your travelling dates?

USER: My depart will be on 02/28 and arrive on 03/01.

ASSISTANT: Please share me your nearest airport codes.

USER: My airport codes are from DC-DCA to CO-DEN.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. We found a SouthWest airline, flight number:1007 and the price is 100. Can I reserve it?

USER: Ok, proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.