You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: John Lee here.

ASSISTANT: Is there any help that you need from my end?

USER: I'm planning to visit Washington, can you please book a ticket from OAK to DCA?

ASSISTANT: Sure, on what dates that you are willing to book your ticket?

USER: Sure, my planned departure and return travel dates are 5th and 7th of February.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Thank you for your information, there is a flight 1018 with a 1 drop off in JetBlue airlines and the fare of the ticket is 200. Is it ok for you to book the ticket?

USER: That's fine, you can proceed for booking the ticket.

ASSISTANT: I have confirmed your flight ticket booking in the above flight.

USER: Thank you so much for your help.

ASSISTANT: You are welcome and have a happy journey.