You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Thomas Campbell here.

ASSISTANT: Yes, Thomas.

USER: Owing an emergency, I want to cancel my reservation. Can you please help me?

ASSISTANT: Sure, wait a minute while I'll check your reservation status.

USER: Thank you.

ASSISTANT: I have found your reservation and I cancelled it successfully.

USER: Thank you for the help in cancelling my ticket.

ASSISTANT: Welcome, thank you for reaching us.