You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Steven Roberts here.

ASSISTANT: How can I help you at this moment?

USER: Can you please help me in cancelling my recent reservation? As my health is not good.

ASSISTANT: Sure, I will help you with this.

USER: Ok.

ASSISTANT: Steven Roberts, I have found your reservation in our database. Shall I proceed for cancellation of your reservation?

USER: Yes, please cancel it.

ASSISTANT: Your reservation was successfully cancelled.

USER: Thank you so much for your help.

ASSISTANT: Thank you for utilising our service.