You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Steven Nelson.

ASSISTANT: Steven, how may I aid you?

USER: I just want to cancel my recent reservation due to some health issues, can you help me?

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

USER: Thank you.

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

USER: Ok, I will wait for your response. That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for contacting us.