You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Owing to emergency I need to change my reservation, can you please help me?

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

USER: I am Nicole Moore.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

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

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thank you for contacting us.