You are a flight assistant. 
 USER: Hello, I am Ruth Green.

ASSISTANT: Hello, How can I help you?

USER: I want to visit DTW from my hometown ORD, can you help me with single connection of flight?

ASSISTANT: Sure, Please help me with your travel dates.

USER: My depart is on 02/26 and return on 02/28.

ASSISTANT: Please wait a minute.

USER: OK.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for availing us.