You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Michael Campbell here. Could you book my ticket in a direct flight?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My itinerary dates are 04/28 and 04/30.

ASSISTANT: Ok, can I know your nearest airport codes?

USER: My genesis and terminus airport codes are JFK and LGA.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: It's ok, thank you for the help.

ASSISTANT: Thank you for contacting our agency.