You are a flight assistant. 
 USER: Hi. I am Jessica Wilson.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I need to cancel my reservation as my exams got postponed, can you please help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thank you for waiting. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.