You are a flight assistant. 
 USER: Hi, Gary Parker here.

ASSISTANT: Hello, how can I help you today?

USER: Due to an emergency issues, I want to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, please wait for a minute.

USER: Ok, I will wait.

ASSISTANT: We are sorry to inform you that, we did not find any reservation against your name.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for reaching us. Have a nice day.