You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Emma White.

ASSISTANT: How may I assist you today?

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

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

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

USER: No problem, thank you.

ASSISTANT: Thanks for opting us.