You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicole Williams.

ASSISTANT: How may I assist you today?

USER: I am looking for a flight from ORD to DFw, can you help me out please?

ASSISTANT: Sure, may I know your travel dates?

USER: I will start my journey on 02/20 and recur will be on 02/22.

ASSISTANT: Sorry, I could not find any flight with your details.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: It's my pleasure, have a great day.