You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Samuel Roberts.

ASSISTANT: Samuel, how may I help you?

USER: I want to cancel my reservation as I met with an accident, can you please do that for me?

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

USER: Thank you. I will wait for your response.

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

USER: No problem, thank you for checking.

ASSISTANT: Thank you for choosing us.