You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I am Frank Collins here. I would like to book a flight ticket from DEN to  ORD. Can you help me out in booking my flight ticket?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My preferable travel dates are from July 07 to July 09.

ASSISTANT: We have found a Hawaiian airline of 1028 flight number with one connection of cost 100.

USER: Ok, please proceed with that booking.

ASSISTANT: Your booking is done.

USER: Thank you for booking my ticket in Hawaiian airline.

ASSISTANT: Thank you for reaching us.