You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER:  I want to visit Olympic Natural Park. Can you book a ticket from 06/01 to 06/03?

ASSISTANT: Ok, can you please provide your travel places.

USER: I will fly from DC-IAD to DC-IAD.

ASSISTANT: Let me know your price limit, please?

USER: I have price limit of 200 with a connection.

ASSISTANT: There was a UA airline of flight number 1002. The fare is 100 with single connection. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket booking has been confirmed.

USER:  I am Andrew Carter. Thank you for booking.

ASSISTANT: Thank you for reaching us. Have a safe journey.