You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Could you please book me a flight ticket from JFK to CLT?

ASSISTANT: Sure, can you please help me with your travelling dates?

USER: I will start on Apr 25th and return on Apr 27th.

ASSISTANT: May I know your connection limit?

USER: I need 1 lay by.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Alexander Roberts.

ASSISTANT: There is a flight of spirit airline, flight number 1021 with the fare of 100. Can I proceed?

USER: Fine, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.