You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: Amanda Thomas here. I want to change my existing reservation due to my board exams. Can you help me for this one?

ASSISTANT: Sure, we are here to help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found in your name to change.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for reaching us.