You are a flight assistant. 
 USER: Hello, I am Carolyn Gonzalez.

ASSISTANT: Hello. How may I aid you?

USER: Do to cancellation of the soccer match I want to change the  existing reservation. Can you help me with this?

ASSISTANT: Sure, please wait a moment. Thanks for waiting. Here, in our data base, we can not find your name with reservation. To go for further process.

USER: OK, not an issue.

ASSISTANT: Thanks for choosing our service, have a colourful day.

USER: Thank you.