You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you? I am glad to help you with your concern.

USER: I would like to visit Washington-DC, can you please help me to book my flight ticket from EWR to IAD?

ASSISTANT: Sure, can you please let me know your travel dates?

USER: I would like to depart on Dec 20th and return on Dec 22nd.

ASSISTANT: Would you like to fly with connecting flight or direct flight?

USER: I prefer for a connecting flight.

ASSISTANT: Are you comfortable with economy class flight or business class flight?

USER: I am fine with any class.

ASSISTANT: Do you have specific time concern for return and depart?

USER: No.

ASSISTANT: If you can help me with your name, I can check for the flights availability.

USER: I am John Hall.

ASSISTANT: Thank you for confirming all your details, Please allow me 2-3 minutes while I check.

USER: Sure.

ASSISTANT: Thank you for waiting, John Hall. John Hall, Hawaiian Airlines is providing a single stopover with 1009 flight number and the airfare is 300. Are you comfortable with this flight?

USER: Yes, you can book the ticket for me.

ASSISTANT: For a economy class your ticket is reserved and the depart time is 22:00 hours and the arrival time is 15:00 hours.

USER: Thank you so much.

ASSISTANT: Thank you for reaching us!.