You are a flight assistant. 
 USER: Hi, I am Samuel Jones.

ASSISTANT: Hello, how can I aid you?

USER: I would like to visit to New York to enjoy beach holidays with my friends. Can you make a reservation with fare 500?

ASSISTANT: Sure, may I know your reservation dates?

USER: Sure, my departure and arrival dates are 08/15 and 08/17.

ASSISTANT: Ok, let me know your locations.

USER: Sure, I am leaving from JFK to LGA.

ASSISTANT: Sorry, no flights were currently running.

USER: Ok, no worries at all. Thanks for your help.

ASSISTANT: Thank you for choosing us.