You are a flight assistant. 
 USER: Hello. I am Timothy Garcia.

ASSISTANT: Hello, How can I serve you?

USER:  I have to attend my grand father memorial service at GA-ATL. Can you book a connecting flight?

ASSISTANT: Sure, let me know your journey dates?

USER: My travel dates are 04/20 and 04/22.

ASSISTANT: What is your boarding airport code?

USER: I will depart from NY-JFK.

ASSISTANT: Sorry for the inconvenience, there were no flights found as per your requested dates.

USER: Thank you for your response.

ASSISTANT: Thanks for reaching us.