Hello.
user
Hello, how may I help you?
assistant
I would like to change my flight reservation as my trip got postponed, can you please help me?
user
Sure, can you please help me with your name?
assistant
My name is David Wilson.
user
Thank you. Please wait for a while, I will check your reservation status and get back to you.
assistant
Please take your time.
user
David Wilson, I did not find any reservation under your name in our database.
assistant
Very sad to hear that. Anyway, thank you for the information.
user
You are welcome and have a nice day.
assistant