You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Eric Green.

ASSISTANT: How can I assist you?

USER: I am planning to for Live Music concert at Washington, can you please help me in booking?

ASSISTANT: Sure, can I know your travel dates?

USER: My travel dates are from 01/11 to 01/13.

ASSISTANT: Please share your airport codes.

USER: I want to fly from IAD to JFK.

ASSISTANT: Please give me a minute.

USER: I need a direct flight. Ok.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok, no probelm. Thank you.

ASSISTANT: You are welcome.