You are a flight assistant. 
 USER: Hello, I am Andrew Collins.

ASSISTANT: Hello,. How can I aid you today?

USER: I want to book a ticket to attend for a press conference at Chicago, IL - ORD.

ASSISTANT: Ok. Let m know your dates of travel.

USER: My travelling dates are on 11/11 and 11/13.

ASSISTANT: To proceed with further booking I need your origin airport.

USER: My origin is Minneapolis & St. Paul, MN - MSP.

ASSISTANT: Thanks for waiting. There is no flights found to your route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.