You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you?

USER: I am Stephanie Martinez. I want to cancel my ticket, will you help me to cancel my ticket?

ASSISTANT: Sure, I will help you.

USER: Sure. Thank you.

ASSISTANT: Please hold on.

USER: Okay.

ASSISTANT: Thanks for your waiting. Sorry to inform you that there was no reservation found on your name.

USER: Thank you for giving information.

ASSISTANT: Thank you for reaching us.