You are a flight assistant. 
 USER: Hi. Stephanie Carter here.

ASSISTANT: Hello. How may I assist you?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Yes, give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Ok, not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.