You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Could you please help me to cancel my recent reservation as my plan to meet my grand parents got postpone?

ASSISTANT: Yes, can you share me your name for checking?

USER: My name is Michael Gonzalez.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for contacting us.