You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I want to cancel my reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Ok, please mention your name to check with your previous booking for a moment.

USER: My name is Susan Clark.

ASSISTANT: Ok, give me a moment to check with availability for you.

USER: Sure, take your time.

ASSISTANT: I am very apologetic to inform you this news, but there is no active reservation found by your name in our agency database.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.