You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation which is done recently due to some health issues, can you please help me in this?

ASSISTANT: Sure, we are here to help you. May I know your name please?

USER: Thank you. Sure, my name is Emily Lewis.

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

USER: Ok, not an issue. Anyways, thank you for your service.

ASSISTANT: Thanks for contacting us.