You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I aid you?

USER: I am Jerry Brown.

ASSISTANT: Ok.

USER: I want to change my journey date as my plan to visit Charlotte is postponed, can you help me with changing the reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please stand by.

USER: Sure.

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

USER: Ok, no issues.

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

USER: Thanks for the information.