You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kenneth Martinez.

ASSISTANT: How can I help you today?

USER: I want o visit Renaissance Center for my interview, can you help me in booking the ticket?

ASSISTANT: Sure, I can help you with that. Kenneth, can you please help me with your travelling dates?

USER: It's from 02/04 to 02/06.

ASSISTANT: Could you please provide the source and the destination airport codes?

USER: I want to travel from IAD to DTW.

ASSISTANT: Ok, let me check for the availability of flight.

USER: Please make sure the connection is 0.

ASSISTANT: Ok. Kenneth, I am sorry to inform you that there is no flight available at your requested dates.

USER: That's ok. Thank you for your time.

ASSISTANT: You are welcome. Thank you for contacting us.