You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me in reserving the ticket from DEN to BOS?

ASSISTANT: Sure, let me know your travelling dates.

USER: I am planning my trip on Sept 9 and again I will return back on Sept 11.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I am planning to travel in single connection flight.

ASSISTANT: May I know your name please?

USER: Myself Stephanie Carter.

ASSISTANT: Do you have any other specifications?

USER: I am planning to depart in the morning.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Not a big deal, anyhow thank you very much for your kind information.

ASSISTANT: Thank you for opting us.