You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I want to book a flight ticket form BOS to DTW. Could you help me in booking?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: My travelling dates are from Dec 23 - 25.

ASSISTANT: Do you have any connection limit?

USER: I prefer for connecting flight.

ASSISTANT: Any more specifications do you have?

USER: My depart time should be in the afternoon.

ASSISTANT: On whose name I have to book the flight ticket?

USER: Susan Rodriguez.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok.

ASSISTANT: Unfortunately there are no flights running on your route with your required preferences.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for approaching us, hope you have a great day.