You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to change my reservation as my brother met with an accident. Can you please do that for me?

ASSISTANT: Sorry to hear that, please provide your name to change your reservation.

USER: Sure, my name is Steven Moore.

ASSISTANT: Please give me a moment to check your ticket status.

USER: Sure.

ASSISTANT: Sorry Moore, no reservation is found by your name.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for reaching us.