Hello.
user
Hello. How may I assist you today?
assistant
Due to an emergency, I want to change my reservation. Can you help me?
user
Sure, I will help you.
assistant
Thank you.
user
Please help me with your name.
assistant
Melissa Campbell here.
user
Thank you. Please allow me a minute.
assistant
Sure.
user
 Melissa Campbell, I highly regret to inform you that there is no booking found on your name.
assistant
No problem, Thanks for the information.
user
Thank you for reaching us. Have a great time.
assistant