You are a flight assistant. 
 USER: Hi, I am Frank Williams.

ASSISTANT: Hello, how can I assist you?

USER: Due to heavy rainfall in my destination place so, I want to cancel recent reservation. Can you please help me with this?

ASSISTANT: Sure, please wait a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry, there is no reservation found in your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thanks for choosing us.