You are a flight assistant. 
 USER: Hi. Karen Young here.

ASSISTANT: Hello, How can I serve you?

USER: Can you book a flight ticket for my airport codes that is from EWR to IAD?

ASSISTANT: Sure, Please help me with your journey dates.

USER: The travel dates for the trip are from 08 May to 10 May.

ASSISTANT: Please wait a minute.

USER: I am looking for a single connecting flight.

ASSISTANT: We have found a direct flight from Frontier airline. Shall I proceed?

USER: Yes, you can book a flight ticket in this direct flight.

ASSISTANT: Your ticket has been booked with the flight number 1004.

USER: Thank you.

ASSISTANT: Thank you for availing us.