You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Charles Robinson here.

ASSISTANT: Charles, how may I help you?

USER: Can you please help me in cancel my recent reservation?

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Sure.

ASSISTANT: I found your reservation and cancelled your ticket.

USER: Thank you for your information.

ASSISTANT: Thank you for contacting us.