You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any assistance from us?

USER: I need to cancel my reservation due to my planned event got cancelled so please help me with cancelling my reservation.

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Can you please tell me your name?

USER: Sure, myself Debra Hall.

ASSISTANT: Sorry, there is no reservation with your name to cancel further.

USER: Oh! It is sad to hear, anyway I will go with another agency this time. Thank you for your valuable time.

ASSISTANT: Thank you for choosing us, have a great day.

USER: Most welcome.