You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Due to some health issue, I need to cancel my recent reservation. Can you please cancel it?

ASSISTANT: Sure, I am here to help you with this.

USER: Thank you.

ASSISTANT: Can you please provide your name to check your reservation status?

USER: I am Karen Baker.

ASSISTANT: Karen Baker, I have found your reservation in our database, would you like me to cancel your reservation?

USER: Please, cancel it.

ASSISTANT: Your reservation has cancelled successfully.

USER: Thank  you for assisting me.

ASSISTANT: Thank you for opting us.