Hello.
user
Hello. How can I help you?
assistant
Can you help me in changing my existing reservation?
user
Sure, I will help you to change your reservation.
assistant
Thank you.
user
Ok, please mention your name.
assistant
My name is Richard Rodriguez.
user
Ok, please give me a moment.
assistant
Sure, take your own time.
user
Sorry, no reservation found on your name to change your reservation.
assistant
Oh! May be something went wrong while booking the ticket previously. Anyways, thank you for providing information.
user
Welcome, have a nice day.
assistant