You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Due to my ill health, I would like to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, I am happy to help you with that. On which name you reserved a ticket earlier?

USER: My previous reservation has done with my name Anthony Edwards.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry Edwards, there is no reservation found under your name to cancel.

USER: Ok, may be my brother has already cancelled my ticket on behalf of me. Thank you for providing information.

ASSISTANT: Thank you for choosing us.