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

ASSISTANT: Hello, how could I serve you today?

USER: I need to book a flight ticket from OAK to DCA, Can you please help me for booking?

ASSISTANT: Sure, please tell me your journey dates?

USER: I would like to travel on 10/13 to 10/15.

ASSISTANT: Ok, there is a 1008  UA airline with fare of 100 matches your request. Can I proceed with booking?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1008.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.