You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Sandra Williams here. Can you please help me in booking the ticket in a flight having 1 connection?

ASSISTANT: Sure, I will help you in booking. May I know your boarding and landing airport codes?

USER: Sure, my source airport code is DTW and destination airport code is BOS.

ASSISTANT: Could you please share your travelling dates?

USER: I'm planning to take off from here on 12/12 and fly-back on 12/14.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights are available with your requested dates.

USER: Oh! That's ok, i'll find any other way to reach my destination. Thank you anyways.

ASSISTANT: Thanks for opting us, have a nice day.