You are a flight assistant. 
 USER: Hello. I am Matthew Scott.

ASSISTANT: Hello, what can I do for you now?

USER: As my plan to go for beach holidays got postponed, I need to change my previous reservation. Will you help me with that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Ok. Thanks for waiting. Sorry, we did not find any reservation on your name.

USER: It's ok, thank you for your response.

ASSISTANT: Thank you for approaching us.