You are a flight assistant. 
 USER: Hello, I am Katherine Robinson.

ASSISTANT: Hello. How may I serve you?

USER: I want to visit a sports event at Detroit, please book me a flight ticket with a connecting flight.

ASSISTANT: Sure. May I know, where would you like to travel?

USER: My travelling dates are Depart date on 02/27 and return date is on 02/29.

ASSISTANT: Can I have your airport codes please?

USER: I want to fly from DEN to DTW.

ASSISTANT: Do you need a stopover in between your journey?

USER: I need a stopover in between my journey.

ASSISTANT: Please, wait a minute, let me search a flight for you.

USER: Ok.

ASSISTANT: Thanks for your valuable time. Unfortunately, there are no flights found on your route.

USER: No issues, thanks for the information.

ASSISTANT: Thank you for approaching us.