You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: Due to sudden rainfall at my destination, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, let me know your name to check further?

USER: Sure, I am Matthew Gonzalez.

ASSISTANT: Please wait.

USER: Ok, I will wait.

ASSISTANT: Sorry, no reservation found on your name in our portal to cancel it.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.