You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to my ill health, I would like to cancel my trip to Dallas. Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I will help you with that. May I know on which name to had did the reservation?

USER: My previous reservation has done with my name Steven Wright.

ASSISTANT: Yes Steven Wright, your reservation is cancelled successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our agency, looking forward for you to contact us again.