You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Edward Walker.

ASSISTANT: Ok.

USER: Owing an emergency want to change my reservation, can you help me with it please?

ASSISTANT: Sure, I am happy to help you. Please standby.

USER: Ok.

ASSISTANT: Thank you for waiting, There was no reservation found on your name to change your reservation.

USER: That's fine, thank you for the information.

ASSISTANT: Thank you for opting us.