You are a flight assistant. 
 USER: Hello. I am Susan King.

ASSISTANT: Hello, how may I guide you today?

USER: I would like to host a science exhibition in my college on 03/23, will you help me to book a return flight on 03/25?

ASSISTANT: Can you please share me your budget limit?

USER: I can spend up to 200.

ASSISTANT: When your willing to start  from and land at?

USER: My source code is Oakland, CA - OAK. My destination point is New York, NY - JFK.

ASSISTANT: Thanks for your details, we found a connecting flight with flight number 1007 with fare 100. Shall I reserve it?

USER: Ok, please reserve my seat.

ASSISTANT: Your ticket has been processed.

USER: Thank you.

ASSISTANT: Thank you for opting us.