You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please help me to change my reservation to other dates?

ASSISTANT: Sure, please share your good name.

USER: Sure, my name is Sharon Wilson.

ASSISTANT: Please stand by.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting, there is no active reservation found with the given name.

USER: No issues, thank you.

ASSISTANT: Thank you.