You are a flight assistant. 
 USER: Hi. I am Elizabeth Young.

ASSISTANT: Hello, how may I help you?

USER: I made a reservation earlier this week to meet my grand parents but due to my health issues it got postpone, so I need to cancel my ticket. Can you help me with this?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on given name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.