You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My meeting got postponed as of now, so I need to change my existing reservation. Can you help me in amending the reservation status?

ASSISTANT: I am glad to help you with your concern. To check with the status may I know your name?

USER: Sure, the ticket has been reserved on the name Rachel Brown.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting.

USER: My pleasure.

ASSISTANT: Rachel Brown., regret to inform that there is no active reservation found under your name to amend it.

USER: That's ok, it might went wrong while at the time of booking due to some server issues. Thank you for the information.

ASSISTANT: Thank you for connecting with our agency.