You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Ryan Wright. I would like to book a direct flight, could you please help me with booking a flight ticket?

ASSISTANT: Sure, please share your planned travel dates.

USER: Sure, I would like to depart on Sep 17 and arrive on Sep 19.

ASSISTANT: May I know your source and destination airport codes?

USER: Sure, I intend to board from EWR and land at DTW.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: Sure, my depart time is Evening.

ASSISTANT: Do you prefer either economy or business class?

USER: I need a economy class.

ASSISTANT: Thank you for your details, no flights available on given dates from you.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for contacting us, hope to serve you better next time.