You are a flight assistant. 
 USER: Hi. Here Kathleen Clark.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me with flight ticket booking from ATL to JFK to go to my home town in my holidays?

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

USER: I would like to departure on Apr 20th and I will arrival back on Apr 22nd.

ASSISTANT: Ok, may I know your departure and return time?

USER: My return back time is in the evening.

ASSISTANT: Ok, may I know your connection limit?

USER: I need a single connection.

ASSISTANT: Ok, please allow me a moment.

USER: Sure and search the flight with an economy class.

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

USER: Very sad to hear that from your end, I can ask my friend to help me in that one. Thank you for checking for the flights.

ASSISTANT: You are welcome, have a great day.

USER: Welcome.