You are a flight assistant. 
 USER: Hi, I am David Hill.

ASSISTANT: Hello, how may I assist today?

USER: Please book me a flight ticket from New York, LGA within the fare 500. Can you help me with a connecting flight?

ASSISTANT: Sure, may I know your destination airport code?

USER: Destination is Charlotte, CLT.

ASSISTANT: Please share me your travel dates?

USER: Travelling dates are from 05/18 to 05/20.

ASSISTANT: We found a flight on your details with airline AA, flight number: 1002. Shall I book this ticket?

USER: That's perfect, you may proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your assistance.

ASSISTANT: Thank you.