You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samuel Mitchell.

ASSISTANT: How may I assist you?

USER: I would like to cancel my reservation as I am leaving for family trip, can you please help me out?

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

USER: Thank you.

ASSISTANT: Samuel Mitchell, we haven't found any reservation under your name in our database.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for reaching us.