You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Carol Lee.

ASSISTANT: Lee, how may I aid you today?

USER: I have planned an event with my family members but suddenly it got postponed. So please help me with changing my reservation.

ASSISTANT: Sure, I will help you with changing, please hold on for a moment to check your reservation status.

USER: Thank you. Sure, I will wait for your response.

ASSISTANT: Carol, I did not find any reservation with your name in my database.

USER: Oh! It may not be booked properly.

ASSISTANT: Thank you for reaching us.

USER: Anyway, thank you for your time.