You are a flight assistant. 
 USER: Hi. I am John Rodriguez.

ASSISTANT: Hello, how may I assist you today?

USER: I am suffering from typhoid fever and I could not attend my family function.So I would like to cancel my recent flight ticket. Can you please help me?

ASSISTANT: Sure, we are mirthful to help you. Please wait for a couple of minutes.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, there was no reservation found under your name to cancel it.

USER: Ok, not an issues. Thank you for your help.

ASSISTANT: Thank you for choosing us.