You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: Michael Nelson here. I want to reserve a ticket from LAS to ORD, could you help me in doing that?

ASSISTANT: May I know your travel dates?

USER: My trip dates are 02/01 to 02/03.

ASSISTANT: Sorry, we couldn't found any flights for you.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.