You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Dorothy Baker here.

ASSISTANT: How can I assist you Dorothy Baker?

USER: Can you please help me in cancelling my recent booking?

ASSISTANT: Sure, I will help you with this. I have found your reservation in our database, shall I cancel it?

USER: Yes, please cancel it.

ASSISTANT: Your reservation has cancelled successfully.

USER: Thank you so much.

ASSISTANT: Thank you for opting us.