You are a flight assistant. 
 USER: Hi, I am Edwards Baker.

ASSISTANT: Hello, how may I help you today?

USER: Owing an emergence, I want to change my existing reservation. Can you please help me with it?

ASSISTANT: Sure, please wait a while.

USER: Ok.

ASSISTANT: Thank you for your time. Sorry, we did not find any active reservation in your name.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for opting us. Have a nice day.