You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am Michelle Perez. I need a direct flight from DTW to ORD. Please help me in booking my ticket.

ASSISTANT: Sure. Could you provide your travel dates?

USER: Sure, my travelling dates are from 03/10 to 03/12.

ASSISTANT: No flights found with your travelling dates. Thanks.

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