You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Sandra Mitchell.

ASSISTANT: Glad to meet you Sandra.

USER: Can you find a flight from DFW to EWR, to meet my parents who are living in New York.

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

USER: Sure, my trip dates are 08/02 and 08/04.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure.

ASSISTANT: Sorry Sandra, there are no flights available on your requested dates.

USER: It's ok, thanks for your information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.