You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need to visit Denver botanical gardens as a part of my research, can you please book the ticket from EWR to DEN?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Sure, I would like to depart from my source location on 27th March and I want to return back by 29th March.

ASSISTANT: May I know your connection limit?

USER: I prefer single connected flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your good name?

USER: My name is Donald Walker.

ASSISTANT: We found an airline: Southwest, flight number: 1025 and price is 200 with one connection.

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you so much for your help.

ASSISTANT: Thank you for reaching us.