You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: I am Dorothy Wright.

ASSISTANT: Ok.

USER: I would like to attend Sterling Renaissance Festival  in Boston, BOS. Can you please book a flight ticket under the fare of 200?

ASSISTANT:        Sure, may I know your source code please?

USER: My source point is Washington, IAD.

ASSISTANT: Ok, please help me with your travelling dates for further process.

USER: My journey start from Washington on 07/13 and need to catch return flight on 07/15.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Thank you for waiting. We found a flight with number 1018 and airline JetBlue at a  price of 200 with 1 connection. Shall I proceed?

USER: Ok, proceed with the booking.

ASSISTANT: Sure, your booking is done.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us, have a nice day.