You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Can I know your name?

USER: Sure, I am Michael Miller.

ASSISTANT: Sorry, no reservation found by your name.

USER: Oh! It may not be booked properly due to server issues while booking. Anyway, thank you for your time.

ASSISTANT: Thank you.