You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your journey dates, please?

USER: Please cancel my reservation.

ASSISTANT: Sorry, may I know your name please?

USER: Sure, my name is Anna Edwards.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, we have not found any reservation on your name.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for choosing us.