You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I'm Ashley Gonzalez. My scheduled examination dates has been postponed. So, I would like to change my recent reservation which is under my name.

ASSISTANT: Ashley, let me check your reservation details in our website.

USER: Sure, take your time.

ASSISTANT: Sorry Ashley, I have not found any reservation under your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for contacting us and all the best for your exams.

USER: You are welcome.