You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Lopez.

ASSISTANT: How can I aid you today?

USER: I want to attend a function at JFK, can you help me to book a flight ticket from LAS?

ASSISTANT: Sure, I am glad to help you in booking process. Could you please share your travel dates?

USER: I am travelling from May 21 to May 23.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Flight 1007 in Spirit airlines is available for you with 1 stopover and it costs you 100. Can I proceed?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe flight.