You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Can you help me to change my reservation due to an emergency?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: Carolyn Hernandez here.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, There was no reservation found on your given name.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.