You are a flight assistant. 
 USER: Hi. Frank Gonzalez here.

ASSISTANT: Hello, how can I help you?

USER: Reserve a flight ticket for me that is from ATL to JFK. For my business trip to New York. I need a connecting flight.

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

USER: My travelling dates for journey are 04/19 to 04/21.

ASSISTANT: There are no connecting flights available at this moment.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for contacting us.