You are a flight assistant. 
 USER: Hello, I'm Rebecca Taylor.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to visit Zilker park at Denver, as my doctor prescribed me to go for a change, will you help me with booking a flight ticket.

ASSISTANT: Sure, will you provide your airport codes?

USER: My airport codes are IAD and DEN.

ASSISTANT: Please provide your travelling dates.

USER: I would like to travel on 01/02 and return on 01/04.

ASSISTANT: As per your request, there is a flight with price 100 and the connections 1. Shall I proceed for booking?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is booked.The flight number is 1004.

USER: Thank you.

ASSISTANT: Welcome, have a great day.