You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Ryan Lewis.

ASSISTANT: How can I be your helping hand?

USER: I want to cancel my recent reservation, due to health issue. Can you help me out?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait, Let me check the reservation status and revert to you.

USER: Sure.

ASSISTANT: Thanks for spending the time.

USER: Ok.

ASSISTANT: Sorry to say that, we did not find any flights on your routes of the journey. Sorry, there is no reservation on your name.

USER: Thank you.

ASSISTANT: Thanks for your presence.