Hello.
user
Hello. How may I help you today?
assistant
I am  unable to catch the flight on the departure date, so I am willing to change my trip dates. Can you please help me?
user
Sure, could you provide your name?
assistant
Sure, my name is Raymond Evans.
user
Ok, wait for a minute.
assistant
Ok, take your own time.
user
Sorry Evans, your reservation is not found in our database.
assistant
It's ok, thank you for searching my previous ticket status.
user
Thank you for approaching us.
assistant
Welcome.
user