You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to visit Washington, will you help me in booking the flight ticket from OAK to DCA?

ASSISTANT: Sure, may I know your travelling dates?

USER: My preferable journey dates are May 21 and May 23.

ASSISTANT: May I know your name to reserve flight ticket.

USER: Myself Alexander Green.

ASSISTANT: May I know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Do you need any other specifications?

USER: No, thank you for asking.

ASSISTANT: Please wait a moment.

USER: Ok, I will wait.

ASSISTANT: There is a flight with one connection and the price is 200 in Hawaiian Airlines, can I proceed with the reservation?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket has been reserved with the flight number 1008.

USER: Thank you for your help in booking the flight ticket.

ASSISTANT: Thank you for reaching our service.