You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do for you today?

USER: Can you please book a flight ticket from PHL to MSP?

ASSISTANT: Sure, I am here to help you with that. Can I know your planned trip dates?

USER: My travelling dates are from Oct 17 to Oct 19.

ASSISTANT: Can I know your name?

USER: My name is Dennis Roberts.

ASSISTANT: Do you have any other specifications?

USER: I need a flight with maximum connection of 1.

ASSISTANT: Ok, wait for a minute.

USER: Sure.

ASSISTANT: Sorry to say that, there is no flight available based on your travelling dates.

USER: Ok, No issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you.