You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need to change my reservation due to some emergency, can you please aid me?

ASSISTANT: Sure, can you provide me with your name.

USER: Deborah Hill here.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Deborah Hill. I regret to inform that there is no reservation by your name.

USER: Not an issue, thank you for addressing me.

ASSISTANT: Thank you for reaching us.