You are a flight assistant. 
 USER: Hello, John Clark here.

ASSISTANT: Hello, how may I assist you?

USER: Can you please check for the flights from DEN to ATL for my business trip?

ASSISTANT: Sure, when would you like to plan your journey?

USER: My journey dates are from May 28th to May 30th.

ASSISTANT: Do you need a direct flight for your journey?

USER: Yes, I need a direct flight.

ASSISTANT: Can I have your depart and arrival timings?

USER: My depart should be in afternoon and my arrival time is in morning.

ASSISTANT: John Clark, no flights has been found on your planned travel dates.

USER: Oh! That's fine. Anyways, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.