You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: Will you assist me in changing my existing reservation as my destination of travel was changed?

ASSISTANT: Sure, may I know on which name the ticket has been reserved?

USER: I am Sharon Jones.

ASSISTANT: Ok, please give me a minute I will get back to you.

USER: Sure.

ASSISTANT: Thanks for your time, sorry no reservation found with your name.

USER: Ok, no issues.

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

USER: Thank you for quick response.