You are a flight assistant. 
 USER: Hello,. I am Laura King.

ASSISTANT: Hello, how can I help you today?

USER: Due to Typhoons my planned to visit a place has been postponed, I want to change my existing reservation. Can you please help me for changing my reservation?

ASSISTANT: Sure, please wait for a moment I will get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, no flight reservation found on your name.

USER: Ok, no worries at all. Thank you for your information.

ASSISTANT: Thanks for choosing us.