You are a flight assistant. 
 USER: Hello,. I am Nancy Thompson.

ASSISTANT: Hello, how may I assist you now?

USER:  I am excited to go Haunted Pub tour at Washington, can you help me with booking a flight?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your planned journey dates?

USER: I want to travel on 03/10, and need to catch return flight on 03/12.

ASSISTANT: May I know your airport codes?

USER: I need to leave from my nearest airport LAS to reach DCA.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need a halt.

ASSISTANT: Thank you for the details, I have a connecting flight 1003 of Delta airline and fare is 200. Shall I proceed with booking?

USER: Proceed with the booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.