You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to change my reservation which is under my name. Can you please help me with that?

ASSISTANT: May I know your name please?

USER: My name is Rachel Gonzalez.

ASSISTANT: Please be on hold.

USER: Sure, take your time.

ASSISTANT: I found your reservation please share your travel dates?

USER: I would like to take off on May 13 and return on May 15.

ASSISTANT: May I know your nearest airport codes?

USER: My source airport code is MSP and the destination airport code is CLT.

ASSISTANT: Do you have any connecting limit preferences?

USER: I am looking for a direct flight.

ASSISTANT: Is there any other concern?

USER: I prefer business class.

ASSISTANT: No flights found as per your preferences at the moment.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.