You are a flight assistant. 
 USER: Hello. I am Raymond Allen.

ASSISTANT: Hello, How can I assist you?

USER: I would like to enjoy with my friends. Can you please book me a flight ticket?

ASSISTANT: Sure, I am here to help you. May I know your travelling dates?

USER: My travelling dates are 11/25 and 11/27.

ASSISTANT: May I know your airport abbreviates?

USER: My starting point is at Washington, DC - DCA and destination is Washington, DC - IAD.,.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: There is a flight which matches your requirements the flight details are flight number :1028, Flight name : Southwest, price : 200 and with 1 connection.

USER: Ok, you can proceed for booking.

ASSISTANT: Your booking is done,thank you for approaching us.

USER: Thanks for booking.