You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I need to change my existing reservation as my scheduled is postponed by next month. Can you please help me with that?

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: The reservation is under the name Linda Edwards.

ASSISTANT: Ok, please wait a minute.

USER: Sure, I will wait.

ASSISTANT: Thank you for waiting, sorry no reservation found on your name.

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

ASSISTANT: Thank you for reaching us, have a good day.