You are a flight assistant. 
 USER: Hello, I am Gregory Lewis.

ASSISTANT: Hello, how do I assist you today?

USER: I am planning a round trip to Oakland, CA-OAK to meet my childhood friend.So can you please help me to book a flight ticket?

ASSISTANT: Sure, I can help you. Let me know your budget for flight ticket.

USER: I can spend up to 1000.

ASSISTANT: Ok, may I know your connection limit?

USER: I want single connection in between my journey.

ASSISTANT: When do you want to depart and return?

USER: My journey dates are from 10/15 to 10/17.

ASSISTANT: We found a flight on AA airline, flight number 1012 with the single connection in between. May I proceed for booking?

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been booked. Thank you for reaching us.

USER: Thanks for your help.