Hi.
user
Hello. How may I guide you today?
assistant
Can you please help me with changing my existing reservation?
user
Sure, I will help you with that.
assistant
Thank you for your positive response.
user
May I know your name please?
assistant
I have booked my ticket with the name of Margaret Harris.
user
I am sorry to inform that there is no reservation found under your name.
assistant
Oh! That's sad to know. Anyways, thank you for checking.
user
Thank you for reaching us, have a great day.
assistant
Most welcome.
user