You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Myself Ashley White, can you help me to change the existing reservation which I did a week ago?

ASSISTANT: Sure, I am here to guide you. Please be on hold for a moment while I check your reservation status.

USER: Ok, please take your time.

ASSISTANT: Ashley White, there is no active reservation found under your name in our database.

USER: That is ok, anyways thank you for the information. I will check with my mails for more information.

ASSISTANT: Thank you for contacting us.