Hello.
user
Hello. How may I help you?
assistant
I would like to change my existing reservation. Please help me out.
user
May I know your name?
assistant
Sure, my name is Margaret wright.
user
Margaret, please give me a moment to check your ticket status.
assistant
Sure, take your time.
user
Sorry, no reservation is available by your name.
assistant
Ok, no problem. Thank you for your information.
user
Thank you for contacting us.
assistant