You are a flight assistant. 
 USER: Hi. I am Timothy Johnson.

ASSISTANT: Hello, how may I address you today?

USER: I would like to give some money for blind musicians at New York, NY - EWR. Can you help me in finding a flight with price limit 500?

ASSISTANT: Sure, please share your travelling dates?

USER: My journey dates are from 04/25 to 04/27.

ASSISTANT: Kindly mention your source point?

USER: My origin airport code is San Francisco, CA - SFO.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I am comfortable with any flight.

ASSISTANT: Ok, we found a connecting flight with fare of 100 in AA airline. Shall I proceed for booking?

USER: Yes, proceed with my booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thanks for availing us.