You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Matthew Carter.

ASSISTANT: How can I aid you ?

USER: I would like to attend a my brother marriage at Denver, can you help me to book a flight ticket from ATL to DEN?

ASSISTANT: Sure, please provide your travel dates?

USER: I am travelling from Feb 08 to Feb 10.

ASSISTANT: Do you have any specifications?

USER: I prefer normal cost airline.

ASSISTANT: Ok. Do you have any class preferences?

USER: No.

ASSISTANT: May I know your conection limit?

USER: My connection limit is 1.

ASSISTANT: Sorry, I did not find any flight for you.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.