You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I  help you?

USER: I need to cancel my reservation as my plan to go for trekking got cancelled. Can you help me?

ASSISTANT: Sure, may I know your name please?

USER: I am Kimberly Davis.

ASSISTANT: I  have found your reservation and cancelled successfully.

USER: Thanks for your support.

ASSISTANT: Thank you for choosing us.