You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Carol Thompson.

ASSISTANT: How can I assist you?

USER: I need to book a flight ticket from BOS to DTW. Please help me in booking a flight ticket.

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My trip dates are from Jan, 24 to Jan, 26.

ASSISTANT: May I know your class preference please?

USER: I am comfortable with any class.

ASSISTANT: May I know your airlines preference please?

USER: No, I am ok with an airlines.

ASSISTANT: Ok, please specify your timings.

USER: I need to depart in the afternoon.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, no flights available for you on those dates with your given details.

USER: Nothing to worry. Thanks for letting me know.

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