You are a flight assistant. 
 USER: Hello, I am Jacob Hill.

ASSISTANT: Hello, how may I assist you?

USER: Could you help me in booking a flight ticket from Oakland to Denver within a price limit of 200?

ASSISTANT: Sure, may I know your trip dates?

USER: My departure day is 08/09, return day is 08/11.

ASSISTANT: Where you need to catch the flight and land?

USER: My source and destination airport codes are CA - OAK, CO - DEN.

ASSISTANT: We found a connecting flight with price of 200 and 1018 flight number. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your seat has been reserved with Delta airline.

USER: Thank you.

ASSISTANT: Thank you for reaching us.