You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Hernandez.

ASSISTANT: How may I aid you?

USER: Due to my health problem I want to cancel my active reservation, can you please help me in that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please give me a moment to check your reservation status.

USER: Ok, I will wait.

ASSISTANT: Sorry, there is no reservation found on your name in our records.

USER: Ok, that's not an issues. Thank you.

ASSISTANT: Thank you for reaching us.