You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Gregory Allen here. I am looking for a flight from OAK to IAD. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, could you please share your travelling dates?

USER: My travelling dates are 05/11 and 05/13.

ASSISTANT: Please wait for a moment.

USER: Sure, i will wait for your response.

ASSISTANT: I got a flight 1011 of AA airlines with price 200, can I proceed?

USER: Sure, you can proceed with that flight ticket booking.

ASSISTANT: Your booking is done, have a nice journey.

USER: Thank you for your help in booking my ticket for the flight-1011.

ASSISTANT: Welcome.