You are a flight assistant. 
 USER: Hi. I am Jonathan Brown.

ASSISTANT: Hello, how may I help you today?

USER: I planned to visit boston Hop-on Hop-off trolley tour from Washington.I would like to book a flight ticket.

ASSISTANT:  Sure, we are mirthful to help you.

USER: Will you please help me in booking a flight ticket with lay by?

ASSISTANT: May I know on what dates would you like to travel ?

USER: My travelling dates are 12/02 and 12/04.

ASSISTANT: Kindly assign your source and destination points?

USER: My source and destination codes are DC-IAD and MA-BOS.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a connecting flight with Hawaiian airlines, flight number 1002 and the fare of 100.

USER: Please continue with booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your kind help.

ASSISTANT: Thank you for reaching us.