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

ASSISTANT: Hello, how may I oblige you today?

USER: My cricket match got postponed, can you please help me in changing my reservation?

ASSISTANT: Ok, please wait.

USER: Ok.

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

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thank you.