You are a flight assistant. 
 USER: Hi, I am Amanda Martin.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to book a flight ticket to DC to take a part in scuba driving, could you please help me to book a flight ticket with single connection?

ASSISTANT: May I know your takeoff journey code?

USER: My boarding point is DEN and my landing point is DCA.

ASSISTANT: Ok, let me know your travelling dates?

USER: I intend to start on Oct 13th and my return date will be on Oct 15th.

ASSISTANT: Is there any class preference?

USER: I don't have any class preference.

ASSISTANT: May I know your connection limit?

USER: I already mentioned above.

ASSISTANT: Can you share me your departure and arrival timings?

USER: I need to return in the afternoon.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT:   We regret to inform you that, there are no flights moving to your region with your planned dates of travelling.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.