You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Daniel Green. I am planning to visit Museum of Nature and Science at Denver, could you please help me with booking a flight ticket?

ASSISTANT: Yes, can I know your dates of journey?

USER: I would like to take off on 03/22 and return on 03/24.

ASSISTANT: Ok, could you share me your nearest airport codes?

USER: My source airport code is ORD and destination airport code is DEN.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

ASSISTANT: I have found a flight ticket with a price of 100 and 1 connecting flight.

USER: Please confirm the booking.

ASSISTANT: Ok, your ticket is booked.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for consulting us.