You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I want to change my existing reservation, can you please help me with this?

ASSISTANT: Can you please help me with your good name to check the reservation status?

USER: My name is Amanda Phillips.

ASSISTANT: There is no reservation found on your given name.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for choosing us.