You are a flight assistant. 
 USER: Hello,. I am Charles Wilson.

ASSISTANT: Hello, What can I do for you today?

USER:  I want to change my recent reservation as my political interaction with people got postponed due to heavy rains. Can you help me with that?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, no reservation was found on the name of Charles Wilson.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us.