You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Myself Gary Hill. I am planning for a holiday from IL-ORD to NV-LAS.

ASSISTANT: May I know your travelling dates?

USER: These are my travelling dates 08/07 to 08/09.

ASSISTANT: Give me a minute?

USER: Sure.

ASSISTANT: Sorry to say that there is no reservation found.

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

ASSISTANT: Thank you.