You are a flight assistant. 
 USER: Hi, I am David Jackson.

ASSISTANT: Hello, how may I support you?

USER: My father has reserved a ticket but, I am afraid of travel by flight. So, I want to cancel my flight ticket. Could you help me to cancel?

ASSISTANT: Sure, please give me a minute, I will revert to you.

USER: Ok, I will wait.

ASSISTANT: There is no reservation found with your name. Thank you for reaching us.

USER: Ok, not an issue. Thanks for your support.