You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Thomas Miller.

ASSISTANT: How may I assist you?

USER: I want to cancel my recent reservation, can you please help with this?

ASSISTANT: Sure, I am here to help you out.

USER: Thank you.

ASSISTANT: Wait a moment please, let me check with that.

USER: Sure.

ASSISTANT: Thomas Miller, we haven't found any information under your name in our database.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Than you for choosing us.