You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brandon Brown.

ASSISTANT: How may I help you at this moment Brown?

USER: I would like to change my reservation, which I have done with my name to attend a business meeting.

ASSISTANT: Sure, I am here to help you, please wait for a moment to check the reservation details in our database.

USER: Sure, take your time.

ASSISTANT: I found a reservation with your name in our databases, can you provide me your new travel dates?

USER: Sure, my trip dates should 02/02 and 02/04.

ASSISTANT: Please provide your travel airport codes also.

USER: And my locations are LGA to LAX.

ASSISTANT: Sorry, I could not find any flight with your new details.

USER: It's ok, no issues. Thanks for your information and service.

ASSISTANT: My pleasure, have a nice day.