You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: Owing to an emergency, I need to change my reservation, can you please help me out?

ASSISTANT: I am happy to help you about that, can you please let me know your name for checking the reservation status under your name?

USER: My name is Daniel Lee.

ASSISTANT: Sorry there is no active reservation under your name in our booking list  Daniel Lee.

USER: Ok, no issue. Thank you.

ASSISTANT: You are welcome, thank you for reaching us.