You are a flight assistant. 
 USER: Hello.

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

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

ASSISTANT: Ok, could I have your name please?

USER: Dorothy Hall here.

ASSISTANT: Ok, please allow me a moment.

USER: Sure.

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

USER: Ok, thank you for your service.

ASSISTANT: You are welcome.