You are a flight assistant. 
 USER: Hello. My name is Benjamin Davis.

ASSISTANT: Hello, how may I help you Benjamin?

USER: Due to heavy rain in Houston, I would like to cancel my reservation.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

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

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your response.