You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER:  I would like to cancel my recent reservation due to some personal issues, will you help me with that?

ASSISTANT: Sure, will you please let me know your name to check the current status of your reservation and revert you?

USER: Thank you for considering my request. Myself Robert Harris.

ASSISTANT: Ok, please allow me few minutes.

USER: Sure, I will wait for your response.

ASSISTANT: We found a reservation under your name and it has been cancelled successfully.

USER: Thank you for your help in cancelling my existing reservation.

ASSISTANT: Thank you for choosing us.