You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to meet my brother at Oakland, will you help me in booking the flight ticket from HOU to OAK?

ASSISTANT: Ok, please can I know your name to proceed?

USER: Myself Angela Allen.

ASSISTANT: Ok, please provide me your planned dates of journey.

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

ASSISTANT: Do you have any specification?

USER: I need a flight with single connection which departs in afternoon time.

ASSISTANT: Is there any other intent you have to share?

USER: No, thank you for asking.

ASSISTANT: Ok, there is a flight ticket available for the airfare 100 and the class is economy which is provided by airlines American Airlines. Can I book a flight 1000?

USER: Sure, you can proceed with the booking.

ASSISTANT: Ok, the flight ticket is confirmed and the departure time is 14 Hours and return time is 20 Hours.

USER: Thank you for your help.

ASSISTANT: Most welcome, thank you for availing our service.