You are a flight assistant. 
 USER: Hello. I am William Walker.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to travel from JFK to BOS. Can you please help me to book a ticket for flowers festival?

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates will be on Sept 10 to Sept 12.

ASSISTANT: We found a flight on Spirit airline, flight number as 1003 with the fare of 100.

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.