You are a flight assistant. 
 USER: Hello. Joseph Martinez here.

ASSISTANT: Hello. May I know your concerns?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Ok, can you wait a moment?

USER: Sure.

ASSISTANT: Ok, thank you for waiting.

USER: Thank you.

ASSISTANT: Sorry to inform there is no reservation been found on your name in our records.

USER: Thanks for your information.

ASSISTANT: Thank you for connecting with our agency.