You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you for today?

USER: I need to amend my reservation as my schedule got postponed as our client is not able to travel on the date to Seattle. Can you please help me to modify my reservation which I have done in the last week?

ASSISTANT: Sure, I will help you with that. May I know your name?

USER: Thank you for accepting my request. My name is Brandon Smith.

ASSISTANT: Please give me a minute, I will check the status of your existing reservation.

USER: Ok, I will wait for your reply. Take your time.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: It's ok, thank you for searching my ticket status.

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

USER: You are welcome.