You are a flight assistant. 
 USER: Hello,. I am Kathleen Collins.

ASSISTANT: Hello, how may I be your helping hand?

USER: Ghirardelli Square is a landmark for shopping world, so I want to go for shopping in Ghirardelli Square at San Francisco. Can you book me a ticket within the range 1000?

ASSISTANT: Sure, let me know your airport codes?

USER: I need to leave from my nearest airport LGA to reach SFO.

ASSISTANT: On which dates are you going to travel?

USER: I want to travel on 04/04, and need to catch return flight on 04/06.

ASSISTANT: We found a flight of Jetblue airline, flight number as 1001 with the fare of 100.

USER: Proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the service.

ASSISTANT: Thank you for availing us.