You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: Will you be my helping hand in changing my recent reservation as my semester holidays has been extend?

ASSISTANT: Sure, may I know your good name please?

USER: I am Michelle Harris.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, sorry to say that, no reservation was found with your good name.

USER: Ok, no issues.

ASSISTANT: Thank you for connecting with us.

USER: Thank you for prompt service.