You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you aid me to change my reservation due to emergency?

ASSISTANT: Can I know your name?

USER: Christine Parker here.

ASSISTANT: Let me check status with your recent reservation.

USER: Okay.

ASSISTANT: Sorry, there is no reservation by your name.

USER: Thank you.

ASSISTANT: Thank you.