You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How may I help you?

USER: I am Paul Thompson.

ASSISTANT: Ok.

USER: I need to travel from San Francisco, SFO to Boston, BOS to attend an business meeting. Could you please book me a flight?

ASSISTANT: Please provide your travel dates?

USER: I would like to travel on 08/08 to 08/10.

ASSISTANT: Any specifications?

USER: The price limit is 500 and it can be of single connection.

ASSISTANT: No flights found with your requirement. Thanks.