You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I need to travel to DTW for my business trip, can you please reserve flight ticket from ORD?

ASSISTANT: Sure, please provide your travel dates.

USER: Sure, my planned travelling dates are Sep, 24 and 26.

ASSISTANT: Do you have any preferences?

USER: Yes, I used to prefer business class for my journey.

ASSISTANT: Do you have any other preferences?

USER: Yes, flight has to be with a single connection.

ASSISTANT: May I know your name?

USER: Sure, my name is Pamela Anderson here.

ASSISTANT: Sorry, I did not find any flights for you.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.