You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Barbara Davis.

ASSISTANT: How can I aid you at this moment?

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

ASSISTANT: Sure, I will help you with this. Please give me a moment to check your reservation status.

USER: Thank you. Sure, I will wait.

ASSISTANT: Barbara Davis, there is no active reservation found under your name in our database to cancel it.

USER: Not a problem, thank you.

ASSISTANT: Thank you for utilising our service.