You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: Please book a ticket from LGA to CLT.

ASSISTANT: Sure, May I know the travel dates?

USER: Travel dates are Aug 24 and Aug 26.

ASSISTANT: May I know your name?

USER: My name is Andrew Lewis.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: We have found a direct flight from Spirit airline. Shall I proceed?

USER: Please book a flight.

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

USER: Thanks.