You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I want to cancel my recent reservation because my childhood friend met with an accident.

ASSISTANT: Sure, I will help you. Could you please mention your name to check the previous reservation?

USER: Sure, my name is Steven Jackson.

ASSISTANT: Ok, sorry Jackson, there is no reservation found with your name to cancel.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us. Have a nice day.

USER: Thank you for the information.

ASSISTANT: You are welcome.