You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Angela Campbell. I would like to book a ticket to Denver, can you please help me out?

ASSISTANT: Yes, please I will help you with flight ticket booking. May I know your airport codes please?

USER: I am flying from DFW to DEN.

ASSISTANT: Ok, now please help me with your journey dates?

USER: I am travelling on these dates 03/25 and 03/27.

ASSISTANT: Thanks for your patience. I have found Delta airlines which flies with one connection.

USER: Ok, you can proceed with this flight.

ASSISTANT: Sure, your flight ticket has been booked.

USER: Thank you for your services.

ASSISTANT: Ok, thank you.