You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: Can you please help me with booking a flight ticket from ATL to DEN for my business trip?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My journey dates are from Feb 29 to Mar 2nd.

ASSISTANT: May I know your connection limit?

USER: I need 1 connection flight.

ASSISTANT: Which class do you prefer?

USER: My return time is in afternoon and I need an economy class ticket.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: May I know your name?

USER: My name is Benjamin Thomas.

ASSISTANT: Sorry Benjamin Thomas, no flights are available from DEN in the afternoon.

USER: Oh! That's ok. Thank you for checking anyways.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.