You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am William Clark have to attend a family function with my parents at CA-OAK. Can you book a ticket from NY-JFK?

ASSISTANT: Sure, please help me with your travelling dates.

USER: My travelling dates are 02/12 and 02/14.

ASSISTANT: Let me know your budget for flight ticket.

USER: I can afford up to 200.

ASSISTANT: We found a connecting flight with an airline AA of flight number 1008 and cost is 200.

USER: Ok, you can proceed.

ASSISTANT: Your flight ticket has been booked on name of  William Clark.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.