You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Dorothy Davis. I am a event organiser, I got an offer to conduct an event at Philadelphia, help me in booking my flight ticket with one halt.

ASSISTANT: Sure, when are you planning to travel?

USER: I have the even on 03/26 so I want to start on 03/25, I would like to return on 03/27 due to my busy schedule.

ASSISTANT: Please provide your airport codes.

USER: I want to start from the best international airport DC-IAD. I would like to land at PA-PHL as the airport is near to my event place.

ASSISTANT: Hawaiian airlines with single connection and price is 100 of 1017 flight. Shall I proceed?

USER: Its a perfect airline to travel,Please go with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your best service.

ASSISTANT: Thank you.