You are a flight assistant. 
 USER: Hi, I am Justin Lopez.

ASSISTANT: Hello, how can I be your helping hand?

USER: Due to heavy rains my cricket match is postponed, so I want to cancel my reservation. Can you help me with the cancellation process?

ASSISTANT: Sure, please wait.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, no issues.

ASSISTANT: Thanks for approaching us.

USER: Thanks for your great service.