You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you now?

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, I will help you with that.

USER: Thank you.

ASSISTANT: Can I know your name to check your previous reservation?

USER: Sure, my name is Melissa Martinez.

ASSISTANT: Please be on hold to check.

USER: Sure, I will wait.

ASSISTANT: As per you request, I have found your reservation and cancelled it successfully.

USER: That's ok. Anyways, thank you for your service.

ASSISTANT: Thank you for approaching us, have a great day.