Hello, I am Eric Williams.
user
Hello. How may I aid you today?
assistant
I would like to change my existing reservation due to postpone of my event. Could you please help me with modification?
user
Please wait a moment, let me check with the details. Thank you for waiting.
assistant
Sure, I will wait for your response.
user
Sorry, there are no active reservations to change your flight.
assistant
No problem, thank you for the information.
user
Thank you for reaching our service.
assistant