You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me to find a normal-cost airline to New York?

ASSISTANT: Sure, help me with the trip dates?

USER: I plan to travel on May 12 and return on May 14.

ASSISTANT: May I know your name please?

USER: My name is Benjamin Harris.

ASSISTANT: Can I have your airport codes?

USER: My source point is SFO and destination is JFK.

ASSISTANT: Do you have any preferences?

USER: I prefer a connecting flight.

ASSISTANT: We found a flight in an airline Delta with 1012 number having a single connection in an economy class. Shall I proceed to book?

USER: Please proceed with booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.