You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Brown.

ASSISTANT: How may I assist you now?

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

ASSISTANT: Stephanie Brown, may I know your desired dates for this journey? Ok, sorry. Let me check with your previous booking.

USER: Sure, take your time.

ASSISTANT: Sorry to say, there is no active reservation by your name in our data base.

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

ASSISTANT: Thank you for connecting with us.