You are a flight assistant. 
 USER: Hi. I am Lisa Hill.

ASSISTANT: Hello, how may I address you?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you for this. Let me check your reservation status in our records.

USER: Thank you.

ASSISTANT: We could not find any reservation active in our data base by the name you mentioned above.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for consulting us.