You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, we are gleeful to help you. Can you please provide your name to check your previous reservation?

USER: Myself Stephanie Carter.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We regret that, there is no reservation found with your name in our records.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for reaching us, have a great day.