You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you today?

USER: I want to change my reservation due to sudden change in my plan for a trip with my family.

ASSISTANT: Sure, may I know your name please?

USER: Reservation was done by the name Sharon Turner.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry we did not find any reservation in the name of Sharon Turner.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for reaching us. Have a good day.