Hello. I am Emily Parker.
user
Hello, how may I help you?
assistant
 Can you please help me in booking the ticket from DEN to DTW? As I'm planning to visit Detroit  hills.
user
Sure, I will help you with that. Can I have your travel dates please?
assistant
My travelling dates are 01/19 and return on 01/21.
user
Please wait for a moment.
assistant
Sure.
user
Sorry to say, no flight is available for you as per your requests.
assistant
No problem, thank you for your information.
user
Thank you for reaching us.
assistant