You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Larry Lewis here. I want to book a ticket from LAX to MSP. Can you help me with booking?

ASSISTANT: Sure Lewis, can I know the travel dates please?

USER: My travelling dates are from 07/19 to 07/21.

ASSISTANT: There is a flight in Spirit airline with price 200.

USER: Sure, you can proceed with that ticket booking.

ASSISTANT: Your ticket has been booked with flight number 1020.

USER: Thank you for booking my ticket for the flight 1020.

ASSISTANT: Thank you for approaching us.