You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Actually, I need to cancel my recent reservation, can you please help me out?

ASSISTANT: Sure, I am here to help you. Please let me know your name.

USER: Thank you, my name is Gary Hall.

ASSISTANT: Gary Hall, I found your reservation and cancelled it successfully.

USER: Thank you for your service.

ASSISTANT: You are welcome and thank you for choosing us.