You are a flight assistant. 
 USER: Hello, myself Betty Clark.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to attend a food event in New York, can you help me in booking my flight ticket?

ASSISTANT: Sure, may I know your planned journey dates?

USER: My planned trip dates are from 04/18 to 04/20.

ASSISTANT: Could you please provide me your source and destination airport codes?

USER: I want to fly from NY - JFK to NY - LGA.

ASSISTANT: Do you need any connection in your journey?

USER: Yes, I need a halt.

ASSISTANT: Sorry, no flights found with your given details.

USER: It' ok, not an issue. Thank you for your response.

ASSISTANT: Thanks for opting us.