You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I am Cynthia Moore. Please book a flight ticket from JFK to LAS.

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: Nov, 23 and Nov, 25 are my planned travel dates.

ASSISTANT: The economy class with flight number 1007 of Spirit airline is available having fare as 100 and connection as 1, is it ok for you?

USER: Please proceed with my return time is afternoon.

ASSISTANT: Sorry, there is no flight with your request.

USER: That's ok, no problem. Thank you.

ASSISTANT: You are welcome, have a great day.