You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Robert Carter here.

ASSISTANT: How can I assist you?

USER: Can you please book me a ticket from DEN to DEN? As I'm planning a round trip.

ASSISTANT: Ok, can you share your requested dates of travelling?

USER: Sure, my departure and return dates are 04/07 and 04/09.

ASSISTANT: Wait for a while to check in our website to find the flight.

USER: Sure, take your time.

ASSISTANT: As per your request there is a flight 1002 in Hawaiian airlines with a fare of 100, can I proceed to book the ticket?

USER: Sure, you can proceed booking.

ASSISTANT: Ok, the ticket booking is successfully reserved. Thank you for reaching us, have a nice day.

USER: Thank you so much for booking.