You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Larry Hernandez here.

ASSISTANT: How can I assist you now?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure Larry Hernandez, I will help you with that. Please wait a moment to check your reservation status.

USER: Ok.

ASSISTANT: Sorry Larry Hernandez, no reservation has found under your name to cancel.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for choosing us, have a great day.