You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking a flight ticket from DEN to PHL?

ASSISTANT: Sure, can I know your travelling dates?

USER: I want to start my journey on June 10th and return on June 12th.

ASSISTANT: On which name should I reserve the flight ticket?

USER: Please reserve a ticket on the name of Mary Scott.

ASSISTANT: Do you have any connection limit?

USER: Yes, I would prefer maximum number of one connection in between my journey.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on given dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.