You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amanda Wilson.

ASSISTANT: How may I guide you?

USER: I want to change my existing reservation due to postpone of my exams, can you help me with that?

ASSISTANT: Amanda wilson, I am willing to help you for this. Let me check your reservation status in our database.

USER: Sure, take your time.

ASSISTANT: Amanda Wilson sorry to intimate, no reservation is found with your criteria.

USER: No problem, thank you.

ASSISTANT: Thank you Amanda Wilson for utilizing our agency.