You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I am Matthew Garcia.

ASSISTANT: Thanks for providing your name.

USER: I want to attend my grandfather memorial service at Austin,TX-AUS on 12/31.

ASSISTANT: Ok.

USER: I will depart to New York,NY-LGA on 01/02.

ASSISTANT: Sorry there are no flights found on your journey dates.

USER: Thank you for your service.

ASSISTANT: Thanks for connecting us, have a nice day.