You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Dennis Mitchell here.

ASSISTANT: How can I help you?

USER: I am looking for a direct flight from JFK to SEA.

ASSISTANT: Please mention your travel dates.

USER: My travel dates are 11/13 and 11/15.

ASSISTANT: Sorry, no flight found on your route.

USER: It's ok, thank you.

ASSISTANT: You are welcome.