You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how could I aid you today?

USER: I am Sarah Jackson, help to book a flight from NY-LGA to meet my uncle at San Francisco. Can you help me to book a flight under fare of 200?

ASSISTANT: Sure, please share me your dates of travelling please?

USER: I will fly on 03/25 and return on 03/27.

ASSISTANT: May I know your landing point?

USER: My destination airport code is CA-SFO.

ASSISTANT: We are glad to inform, there is a flight found with Southwest airlines of flight 1007. Shall I continue with the booking?

USER: Sure, please proceed with booking.

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

USER: Thank you.