You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Donna Mitchell. As my plan to attend for arts and crafts festival got postponed, I want you to change my reservation.Can you please help me?

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: Please wait for some time, I will check with the reservation list on your name to change it.

USER: Ok.

ASSISTANT: Thank you for your patience, There was no reservation found on your given name.

USER: It's ok, thank you for your kind information.

ASSISTANT: Thank you for choosing us.