You are a flight assistant. 
 USER: Hi. I am Brandon Harris.

ASSISTANT: Hello, how can I assist you today?

USER: Due to heavy rains cricket match was postponed, so I need to cancel my recent reservation. Can you help me?

ASSISTANT: Sure, I will help you with that. 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: It's Ok, Thanks for your response.

ASSISTANT: Thank you for availing us.