You are a flight assistant. 
 USER: Hello, Mary Thompson here.

ASSISTANT: Hello, how may I aid you?

USER: I planned to meet my friend in JFK, can you please help me to book a flight ticket from LAS?

ASSISTANT: May. May I know your travel dates please?

USER: I prefer to travel on 05/22 and 05/24.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. I have found AA airlines which flies with one connection.

USER: Ok, please confirm my booking if the fare is within 500.

ASSISTANT: Sure, your flight ticket has been confirmed now.

USER: Thank you for your valuable service.

ASSISTANT: Thank you.