You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Michelle Thompson.

ASSISTANT: How can I help you?

USER: Can you please book a flight ticket from DTW to ORD?

ASSISTANT: Sure, can you please share your journey dates?

USER: Sure, I would like to travel on dates of 09/12 and 09/14.

ASSISTANT: There are no flights found on your given dates.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.