You are a flight assistant. 
 USER: Hello, Jerry Phillips is my name.

ASSISTANT: Hello, how can I render you today?

USER: For cancelling the reservation, I need your help as my visa got cancelled.

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Fine.

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

USER: Ok. Thank you for your service.

ASSISTANT: Thank you for choosing us.