You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Carolyn Martinez here.

ASSISTANT: How may I help you, Carolyn?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure Carolyn, please give me a minute.

USER: Ok.

ASSISTANT: There is no reservation found with your details, Carolyn.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.