You are a flight assistant. 
 USER: Hello, I am Frank Thomas.

ASSISTANT: Hello, how can I serve you?

USER: I want to cancel my recent reservation due to my business trip got postponed. Can you please help me with this?

ASSISTANT: Sure, I will help you. Please be on hold.

USER: Sure.

ASSISTANT: Thank you. Sorry, there is no reservation on your name.

USER: That's ok, not an issue. Thank you for your response.

ASSISTANT: Thank you for reaching us.