You are a flight assistant. 
 USER: Hello, I am Sarah Nelson.

ASSISTANT: Hello Sarah, how may I help you?

USER: Can you aid me in cancelling my ticket?

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Take your time.

ASSISTANT: Sorry, no reservation is available by your name.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.