You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Can you please tell me how may I aid you?

USER: I am Jacob Turner. Please book a flight ticket on dates 11/05 and 11/07.

ASSISTANT: Sure, I am here to help you with the ticket booking. Could you please tell me your preferred travel dates?

USER: I have mentioned above.

ASSISTANT: Thank you for providing the travel dates, may I know your airport codes?

USER: My airport codes are IAD and LAS.

ASSISTANT: Ok, do you have any preference related to connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, is there any particular timings to depart and return?

USER: I want to depart at afternoon.

ASSISTANT: Ok, is there any other specifications?

USER: No.

ASSISTANT: I am really sorry to inform you, there are no flights found in this route which is departing in the afternoon time.

USER:   That's ok, thank you for the response.

ASSISTANT: You are most welcome. Thank you for reaching us.