You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Jessica Mitchell.

ASSISTANT: How best I can serve you today?

USER: Please book a flight ticket to IAD from LAS as I want to attend a pioneer festival.

ASSISTANT: Sure, can you please let me know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you prefer any class in your journey?

USER: I prefer an economy class.

ASSISTANT: Kindly assign your journey dates?

USER: My journey dates are 30 Nov and 02 Dec.

ASSISTANT: May I know your depart and return timings please?

USER: I want to depart in the afternoon.

ASSISTANT: Sorry, we did not find any flights matching your details.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for choosing us.