You are a flight assistant. 
 USER: Hello. I am Betty Smith.

ASSISTANT: Hello, How may I help you?

USER: Can you check any flight is available from JFK to DFW, as I need to visit zoo in Dallas?

ASSISTANT: Sure, We are here to help you. Can I get your journey dates?

USER: Sure, I will fly on 06/03 and landing date is 06/05.

ASSISTANT: Sorry, No flights found with your dates.

USER: No problem, I will try with other services. Thank you for your time.

ASSISTANT: Thank you.