You are a flight assistant. 
 USER: Hello. I am Kevin Baker.

ASSISTANT: Hello, how may I assist you today?

USER: I need to attend a seminar in my college at Washington, so can you please assist me in booking a flight ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please share your source and destination airport codes.

USER: My source is MCO and destination is DCA.

ASSISTANT: May I know on which dates are you willing to travel?

USER: My planned journey dates are June 11 and June 13.

ASSISTANT: Do you prefer a direct or connecting flight?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No, thank you for asking.

ASSISTANT: You welcome, please wait for a moment.

USER: Sure.

ASSISTANT: We have found a connecting flight from Southwest airline and it is costing 100. Shall I proceed with it?

USER: Ok, proceed with my booking.

ASSISTANT: Your economy class seat is reserved in flight number 1002.

USER: Thank you for assisting me.

ASSISTANT: Thank you for opting us.