You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Margaret Roberts.

ASSISTANT: How can I help you?

USER: I planned to meet my cousin in BOS, can you please help me to book a flight ticket from DEN?

ASSISTANT: Let me know your travelling dates.

USER: I prefer to travel on Oct 29 and Oct 31.

ASSISTANT: Do you have any preference?

USER: I would like to return back in morning.

ASSISTANT: Found ticket with airline Delta for price 200 having flight number 1014.

USER: Ok, please confirm my booking.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.