You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Dorothy Robinson. I want to fly from DEN to MCO, Can you help me in booking with a direct flight?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are from Apr 16 to Apr 18.

ASSISTANT: Do you have any specifications?

USER: I need a flight ticket in business class.

ASSISTANT: Sorry, there is no flight on your details.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you.