You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Due to heavy rains in my location I want change my reservation, can you help me?

ASSISTANT: May I know your name?

USER: I am Shirley Evans.

ASSISTANT: Sad to inform you, no reservation was found under your name Evans.

USER: No problem. Thank you for checking.

ASSISTANT: Shirley Evans, can I help you with any other information.

USER: No, thanks.

ASSISTANT: Thank you for reaching us. Have a nice day.