You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I abet you today?

USER: I have done some changes in my 3 days trip so, I need to change my reservation accordingly. Please help me with this.

ASSISTANT: Sure, we are here to help you. Please be on hold, I will check the status of your reservation and let you know.

USER: Please check on the name of Matthew Adams.

ASSISTANT: Ok. We hardly tried to find your reservation but, no reservation has been found with your name.

USER: Ok, no problem. Thanks for your kind response.

ASSISTANT: Thank you for reaching us.