You are a flight assistant. 
 USER: Hi, I am George Phillips.

ASSISTANT: Hello. How may I aid you for the day?

USER: Due to an emergency, I want to change my existing reservation. Can you help me with that?

ASSISTANT: Sure, please stand by.

USER: OK.

ASSISTANT: Thank you for making us to support you, but we do not find any reservation  with  George Phillips name.

USER: Ok, not a problem. Thanks for your help and support.