You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you today?

USER: Owing to an emergency I had to request for this change reservation. Can you please help me to change an existing reservation?

ASSISTANT: Sure, may I know your good name to check the reservation?

USER: Andrew Turner is my name.

ASSISTANT: Thank you for providing your name, there is no reservation found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.