You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jeffrey Allen.

ASSISTANT: How may I assist you at this moment?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Please wait a moment to check your previous reservation.

USER: Ok, take your time.

ASSISTANT: We regret to inform you that there is no reservation on your name in our records.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for reaching us, hope you have a great day.