You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, I am here to help you with this. May I know your name please?

USER: Myself Sarah Campbell.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry Sarah, there is no reservation found as per your name to cancel it.

USER: No problem, thanks for checking.

ASSISTANT: You are welcome always.