You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

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

ASSISTANT: I am here to help you about that, can you please provide your scheduled dates of journey?

USER: Thank  you. I have planned my travel dates as Oct 25 and Oct 27.

ASSISTANT: Do you need any connecting flight for your journey?

USER: I am looking for single connecting flight.

ASSISTANT: Do you need any other requirement for your journey?

USER: No, I do not have any other specifications.

ASSISTANT: Can you please let me know your name for booking purpose?

USER: Sure, myself Jefferey Lopez.

ASSISTANT: Sorry Jefferey Lopez, there are no flights which travels to your region on your planned dates of journey.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: You are welcome, thank you for reaching us. Hope you have a nice day ahead.

USER: Most welcome.