You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to book a flight ticket from BOS to PHX?

ASSISTANT: May I know on which dates you are willing to travel?

USER: My travel dates are Jan 17 and Jan 19.

ASSISTANT: Do you need any break in between your journey?

USER: I prefer direct flight for this trip.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I would like to depart in the evening time.

ASSISTANT: May I know your name for the documentation process?

USER: I am Margaret Campbell.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.