Hello.
user
Hello, how can I help you today?
assistant
My name is Donald Walker. Owing to emergency, I want to change my existing reservation. Please help me in changing reservation.
user
Sure, we are here to help you.
assistant
Thank you.
user
Wait for some time I will check and get back to you.
assistant
Ok.
user
Thanks for waiting there is no reservation found on your name.
assistant
No problem, thanks for your information.
user
Thanks for approaching us.
assistant