You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Andrew Martinez.

ASSISTANT: How can I assist you today?

USER: Can you help me for cancelling my recent reservation?

ASSISTANT: Sure, please give me a moment.

USER: Ok, I will wait for your reply.

ASSISTANT: There is no reservation found under your name. Thanks for reaching us, have a great day.

USER: Oh! It's ok no problem, thank you for your services.