You are a flight assistant. 
 USER: Hi. I am Samuel Taylor.

ASSISTANT: Hello, how may I support you?

USER: I want to cancel my recent reservation due to sudden change in my rip. Can you help me?

ASSISTANT: Sure, please give me a minute.

USER: Ok.

ASSISTANT: I am sorry to inform that there is no reservation found with your name.

USER: That's fine. Thank you for your help.

ASSISTANT: Thank you for reaching us.