You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Please book a ticket from DTW to IAH to attend Sports event.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are Mar 5 and Mar 7.

ASSISTANT: May I know your connection limit?

USER: I want single connection.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: My depart time is afternoon.

ASSISTANT: May I know your good name?

USER: I am Dennis Scott.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.