Hello.
user
Hello. How may I assist you at this moment?
assistant
Due to change in my plans to Dallas, I would like to change my existing reservation. Can you help me with this?
user
Sure, I will help you in changing, please hold on for a moment to check your reservation status.
assistant
Sure.
user
May I know your name please?
assistant
My previous reservation has done with the name Mary Allen.
user
Allen, there is no any active reservation with your name in my database.
assistant
Ok, not an issue. May be something went wrong while making the reservation previously. Thank you for providing information.
user
It's my pleasure.
assistant