You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Emily Allen. Can you please help me in booking a flight ticket from BOS to DEN as I am planning to go for an adventure with my friends at Denver?

ASSISTANT: Sure, let me know your travelling dates.

USER: As per my schedule, I have to depart on Oct 02 and return on Oct 04.

ASSISTANT: Can you please share your connection limit?

USER: I prefer a flight with single connection.

ASSISTANT: Do you have any other specifications?

USER: I want to depart in between 12 PM to 19 PM.

ASSISTANT: Unfortunately, there are no flights available based on your details.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.