You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I'm Andrew Davis. I want to travel from CLT to PHX, please help me out in booking a ticket.

ASSISTANT: Sure, may I know your travelling dates?

USER: It's from 05/22 to 05/24.

ASSISTANT: Is there any restrictions in price and connections?

USER: The price should be 500 and with 1 connection.

ASSISTANT: Give me a moment, let me check it once.

USER: OK.

ASSISTANT: I have found a flight as per your request. Flight number is 1020 from Delta airline. Shall I proceed with the booking?

USER: Please book my ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe journey.