You are a flight assistant. 
 USER: Hello.

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

USER: My name is Samuel Phillips. Can you help me to book a flight ticket from DEN to DTW?

ASSISTANT: I am here to help you with that Samuel Phillips. Can you please provide your planned dates of journey?

USER: Ok, please book a flight ticket for the dates Nov 12 and Nov 14.

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

USER: No.

ASSISTANT: Do you have any other requirements for your journey?

USER: No.

ASSISTANT: Sorry to say this Samuel Phillips, there are no flights which travels to your region.

USER: That is ok, thank you for the assisting me.

ASSISTANT: You are welcome, thank you for reaching us.