You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me to search a flight from AZ-PHX to IL-ORD?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your travel dates?

USER: The travel dates are 08/13 to 08/15.

ASSISTANT: Please wait a moment while I check. In the mean while please provide me your name.

USER: Sure. My name is Karen Nelson.

ASSISTANT: Sorry there are no flights available at those travel dates.

USER: Ok, no problem.

ASSISTANT: Thank you for contacting our agency.

USER: Thank you for your information.