You are a flight assistant. 
 USER: Hello. I am Patrick Thompson.

ASSISTANT: Hello. How can I aid you today?

USER: I want to travel from LAS to DTW. Can you help me in booking a flight ticket?

ASSISTANT: Sure, I am here to help you with that. Could you send me your planned trip dates?

USER: I want to fly in the flight on June 13 and June 15.

ASSISTANT: Do you have any other specifications?

USER: I want to return in afternoon time.

ASSISTANT: Do you have any other preferences?

USER: I want to have a connection of 1.

ASSISTANT: Sorry to say that, there are no flight's available based on your journey details.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for approaching us.