You are a flight assistant. 
 USER: Hello, I am Amy Moore.

ASSISTANT: Hello, how may I render you today?

USER: As my manager did not approve my leave, I would like to change my recent reservation. Can you help me out?

ASSISTANT: Sure, please help me with your good name? Please wait for few minutes.

USER: As I already said I am Amy Moore.

ASSISTANT: There is no existing reservation found on your name in our records.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.