You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, good morning.

USER: Myself Karen Smith.

ASSISTANT: Smith, how can I assist you today?

USER:  I would like to travel from BOS to IAD locations, can you please help me in booking a flight ticket?

ASSISTANT: Sure, could I know your journey dates?

USER: Sure, my preferable travelling dates are 05/09 to 05/11.

ASSISTANT: Please hold on, let me check for the available flights.

USER: Sure, take your time.

ASSISTANT: There is a direct flight available to IAD from JetBlue airlines, shall I proceed with booking your ticket?

USER: No, I need single connection flight.

ASSISTANT: Sorry, but there are no single connection flight on 05/09.

USER: That's ok. Thank you for your help.

ASSISTANT: Thank you for choosing us, have a nice day.