You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I want to cancel my recent reservation due to bad health issues. Can you help me in that?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know on which name the ticket has been reserved?

USER: Sure, I am Donna Baker.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry we did not find any reservation against your name.

USER: Ok, no problem. Thank you for for your information.

ASSISTANT: Thank you for connecting with us.