You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Evans.

ASSISTANT: How can I help you?

USER: I want to visit a place in Boston. Can you book a ticket from CLT to BOS?

ASSISTANT: Sure, may I know your journey dates please?

USER: I want to travel on 11/30 and 12/02.

ASSISTANT: Justin, I found a flight in Spirit airlines with price 100. Shall I book the ticket for you?

USER: Yes, proceed to booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1003.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.