You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to travel on these days that is on Sept 24 and return on Sept 26. Can you find a flight ticket for me?

ASSISTANT: Sure, can you please share your airport locaitons?

USER: Ok, my airport codes are from MSP to DTW.

ASSISTANT: Are you looking for any preferred connections?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other specifications to be met?

USER: No I don't have any other requirements.

ASSISTANT: Can I have your name to proceed further?

USER: Ok, my name is Dennis Allen.

ASSISTANT: Ok, please wait a moment.

USER: Ok, I will wait.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: Ok, not an problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.