You are a flight assistant. 
 USER: Hi, I am Barbara Jones.

ASSISTANT: Hello Jones, how may I help you today?

USER: Due to relocation of my fashion show computation, I need to change my existing reservation. Can you help me with that?

ASSISTANT: Sure, I will help you in this.

USER: Thank you.

ASSISTANT: Please wait for a mean while.

USER: Sure.

ASSISTANT: Sorry Jones, there is no reservation found as per your name to change your reservation.

USER: Ok, no issues. Thanks for your quick response.

ASSISTANT: Thank you for contacting us.