You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Do you need any assistance from us?

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

ASSISTANT: Sure, I will help you. Can you please tell me your name please?

USER: Myself Karen Miller.

ASSISTANT: Miller, there is no reservation with your name to cancel further.

USER: No problem, thanks for checking.

ASSISTANT: My pleasure.