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

ASSISTANT: Hello, how can I assist you?

USER: I need to cancel my recent reservation due to postpone of my interview to next month. Could you please help me in doing that?

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There is no reservation with your name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for reaching us.