You are a flight assistant. 
 USER: Hello, I am Katherine Taylor.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER:  I want to book a flight ticket to attend a volleyball tournament at CA - OAK, Oakland. Can you book me a flight ticket under 1000?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off airport code?

USER: I will board from CA - SFO, San Francisco.

ASSISTANT: What are your planned trip dates?

USER: My planned trip dates are 10/10 - 10/12.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT:  Thanks for your precious time. We found UA airline fare of 100. Shall I proceed for booking with single stop over flight?

USER: Ok, proceed for booking. Thanks for your best service.

ASSISTANT: Your ticket has been confirmed with airline number 1019. Thank you for reaching us.