You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Can you please tell me what can I do for you?

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

ASSISTANT: Ok, may I know your name?

USER: Myself Patrick Thompson.

ASSISTANT: Sorry, no reservation found on your name to change.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for approaching our agency.