You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

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

ASSISTANT: Sure, I will help you in changing the ticket.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My name is Ryan Lopez.

ASSISTANT: Sorry, there are no reservations found.

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

ASSISTANT: Thank you.