You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you aid me in booking a flight ticket from OAK to DEN?

ASSISTANT: Sure, may I know your travelling dates?

USER: I am planning to start on Apr 22nd and return back on Apr 24th.

ASSISTANT:  On which name shall I reserve flight ticket?

USER: Susan Thompson.

ASSISTANT: Do you need any connecting flight?

USER: Make sure that it is a direct flight.

ASSISTANT: Do you need any other specifications?

USER: I want to return back in morning time.

ASSISTANT: Sorry, no flight are running on your route due to bad weather forecast.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching our service.