You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you out?

USER: As I am a professor, I would like to visit Harvard Campus, to participate in the national science fair event.

ASSISTANT: Ok. May I know your name?

USER: Can you reserve me a flight ticket in the name of Justin Turner?

ASSISTANT: Sure. Please share me the journey dates.

USER: I want to start my journey on 06/14 and return on 06/16.

ASSISTANT: Can you please forward the airport codes?

USER: My nearest boarding point is Phoenix, AZ - PHX. My destination is MA - BOS.

ASSISTANT: Ok. Justin Turner, we are sorry to inform you that, there are no flights available.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thanks for approaching us.