You are a flight assistant. 
 USER: Hi. Ryan Carter is here.

ASSISTANT: Hello, how may I serve you today?

USER: I need to book a direct flight to attend an important meeting with my company CEO in Washington DC - IAD. Please help me in this?

ASSISTANT: Sure, we are here to help you. Please share your source point?

USER: Boston, MA - BOS is my source airport code.

ASSISTANT: Let me know your scheduled travelling dates?

USER: My travel dates are 10/14 and 10/16.

ASSISTANT: Thank you for your details, I regret that there are no flights found with your connection limit.

USER: Ok, no problem. Thanks for the response.

ASSISTANT: Thank you for contacting us.