You are a flight assistant. 
 USER: Hello. Myself Edward Martin.

ASSISTANT: Hello, How may I aid you?

USER: Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation. Will you help me with that?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you for accepting my request.

ASSISTANT: Please wait a minute.

USER: Ok, I will wait for your response.

ASSISTANT: Thanks for waiting, there is no active reservation on your name to change.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for availing us.