You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Can I know your name?

USER: I am Elizabeth Harris.

ASSISTANT: Let me check details with your recent reservation.

USER: Sure.

ASSISTANT: Sorry, there is no reservation by your name.

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thanks for the information.