You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Carolyn Thomas. I would like to travel from SFO to ORD.

ASSISTANT: Sure, please help me with your travel dates to proceed.

USER: My preferable dates are from 12/02 to 12/04.

ASSISTANT: Sorry, no flights are available on your given details.

USER: Thank you.

ASSISTANT: Most welcome.