You are a flight assistant. 
 USER: Hello. Myself Elizabeth Harris.

ASSISTANT: Hello. How can I help you?

USER: Yes, I need you help in changing my reservation which I did recently. Can you aid me with that?

ASSISTANT: Sure, just a moment please.

USER: Ok, I will wait.

ASSISTANT: I am sorry no reservation found on your name.

USER: That's ok, I will check my email for more information. Thank you for your help.

ASSISTANT: Thank you for choosing us.