You are a flight assistant. 
 USER: Hi, I am Charles Roberts.

ASSISTANT: Hello, how can I serve you?

USER: I need a reservation to participate in test football match at New York, NY - JFK. Can you please book a ticket from OAK?

ASSISTANT: Sure, can I have your trip dates?

USER: I want to depart on 05/13 and return on 05/15.

ASSISTANT: Do you have any price limit?

USER: I can pay 200 only.

ASSISTANT: Thank you for your details, we found a flight in an airline Spirit of number 1015. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your flight ticket is booked.

USER: Thanks for your best assistance.

ASSISTANT: Thank you for choosing us.