You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Janet Williams here.

ASSISTANT: How may I assist you today?

USER: Due to my health issues I am unable to travel. So, can you please help me to cancel my flight ticket?

ASSISTANT: Sure, I will help you with that cancel reservation. Please wait for a minute.

USER: Ok, sure.

ASSISTANT: Sorry, I cannot find any reservation with your name in our database.

USER: Its ok, it might be cancelled by my mother but she did not informed me yet.

ASSISTANT: It's my pleasure, have a great day.