You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Sure, can you please tell me your name?

USER: Myself Larry Wilson.

ASSISTANT: Sorry Larry, no reservation found under your name in our database.

USER: No problem, thanks for checking.

ASSISTANT: You are welcome and thank you for choosing us.