You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Myself Nicholas Hill. I want to travel from DFW to ORD locations, can you please help me in finding a flight ticket?

ASSISTANT: Nicholas Hill, may I know your travelling dates to check for the availability?

USER: My travelling dates are from 06/11 and 06/13.

ASSISTANT: What is your nearest airport for this journey? Ok, please wait.

USER: Sure.

ASSISTANT: Sorry to inform you Nicholas Hill, no flights are found on that route.

USER: It's ok. Thank you for the information.

ASSISTANT: Sorry for the inconvenience, have a great day.