You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I help you?

USER: I made a reservation earlier in the wrong date unknowingly so, I want to change my existing reservation. Can you help me with changing?

ASSISTANT: Sure, I am here to help you with that before going to find your reservation, may I know your name?

USER: Thanks for responding. Patricia Wright, is my name.

ASSISTANT: It's ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for your patience, there is no reservation found under the name of Patricia Wright.

USER: That's ok, thanks for the information.

ASSISTANT: Welcome, have a good day.