You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I amend you today?

USER: I would like to change my reservation on the name of Ruth Miller as I have an urgent work in my office. Will you please aid me in changing?

ASSISTANT: Sure, we are euphoric to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check with the reservation on your name to change it.

USER: Sure.

ASSISTANT: Thank you for your time. We are sorry to inform you that there was no reservation found on your name in our database.

USER: No worries, thanks for your prompt response.

ASSISTANT: Thank you for contacting us.