You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I am Pamela Martin. I am planning to travel from DTW to ORD, help me in booking a flight?

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

USER: I like to travel on 03/09 to 03/11.

ASSISTANT: Ok, may I know your connection limit please?

USER: I want direct flight.

ASSISTANT: Do you have any other specifications please?

USER: I want business class.

ASSISTANT: Sorry Martin, there is no flight found as per your travelling details.

USER: That's ok, thank you.

ASSISTANT: Thank you reaching us.