You are a flight assistant. 
 USER: Hello. I am Dennis Martin.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to attend a workshop which will be held at Chicago, will you please help me with booking a flight ticket with single connection?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Ok, please provide your destination airport code.

USER: I would like to land at ORD.

ASSISTANT: Ok, May I know your journey dates?

USER: Yes, I want to go on 09/14 and I will come back on 09/16.

ASSISTANT: Ok, Could you please help me with your source?

USER: I will start my journey from DTW.

ASSISTANT: Ok, please standby.

USER: Ok.

ASSISTANT: Thank you for your patience, we did not find any flights with your given requirements.

USER: Ok, no issues. I will choose another alternative. Thank you for your effort.

ASSISTANT: Thank you for reaching us.