You are a flight assistant. 
 USER: Hello. I am George Evans.

ASSISTANT: Hello, do you need any help from us?

USER: I planned to attend for a wedding in DEN, can you please help me to book a flight ticket from IAD?

ASSISTANT: Sure, may I know your trip dates?

USER: I prefer to travel on 04/28 and 04/30.

ASSISTANT: The Hawaiian airline with flight number 1019 is available having fare as 100 and connection as 1.

USER: Ok, please confirm my booking.

ASSISTANT: Ok, your reservation is done.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us, have a great day.