You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER:  I am Nancy Nelson. I want to travel to Detroit, MI-DTW to meet my cousins. Can you book a connecting flight?

ASSISTANT: Ok, may I know your source point?

USER: I will depart  from Orlando,FL-MCO.

ASSISTANT: Please, provide your depart and arrival dates?

USER: My travel dates are 11/28 and 11/30.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: Sorry, there are no flights on your route.

USER: Thank you for your response.

ASSISTANT: Thank you, have a nice day.