You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dennis Carter.

ASSISTANT: How may I guide you today?

USER: Can you please help me with cancelling my recent reservation?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: I am sorry to say that there is no reservation found under your details.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for reaching us.