You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Myself Christopher Thompson. I would like to meet my friend at Washington, will you help me in booking the flight ticket from OAK to DCA?

ASSISTANT: Thompson, can you provide me your travelling dates?

USER: My travelling dates are 10/27 and 10/29.

ASSISTANT: There is a flight available with one connection and the price is 100, can I proceed with the booking?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your ticket has been booked with Frontier airlines and the flight number is 1009.

USER: Thank you for your expeditious service.

ASSISTANT: Thank you choosing our service. Have a safe journey.