You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name?

USER: Sure, my name is Dennis Carter.

ASSISTANT: OK, how can serve you?

USER: I want to attend a meeting in New York, can you help me to book a ticket from NY - JFK to NY - LGA?

ASSISTANT: Sure, may I know your journey dates?

USER: Yes, my travel dates are 07/11 and 07/13.

ASSISTANT: OK, let me know your connection limit and price?

USER: Sure, my price should not exceed 500 and connection should be 1.

ASSISTANT: OK, please wait a moment.

USER: OK.

ASSISTANT: Thanks for waiting, sorry to say that no flights were found.

USER: OK, thank you.

ASSISTANT: Thank you, for contacting us.