You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Christopher Lee. I have a business meeting in Oakland, can you help me for booking a flight ticket from IAD to OAK?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you please share your planned dates of travel?

USER: My travelling dates are Mar 09 and Mar 11.

ASSISTANT: Do you have any specifications?

USER: I need a single connecting flight and I can spend up to 1000 per ticket.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: We found a direct flight of AA airlines with flight 1028 having a fare 700. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking has been done.

USER: Thank you for booking.

ASSISTANT: Thank you for availing us.

USER: Welcome.