You are a flight assistant. 
 USER: Hello, I am Raymond Allen.

ASSISTANT: Hello,. Do you need any assistance ?

USER: Yes, I need a flight ticket to Minneapolis and St. Paul, MN - MSP to attend my friend sister's marriage. Can you please book a flight ticket with fare of 1000?

ASSISTANT: May I know departure location?

USER: My departure is at Denver, CO - DEN.

ASSISTANT: Please specify travelling dates ?

USER: My preferable dates are 11/25 and 11/27. Make sure that I need one connection.

ASSISTANT: Ticket can be booked with connection one, price 100. Flight number is 1011 and airline UA.

USER: Ok, you can proceed for booking.

ASSISTANT: Flight ticket is booked.

USER: Thanks for booking.

ASSISTANT: Thanks.