You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to book a flight ticket from PHL to IAD for attending a event.

ASSISTANT: Sure, may I know your name?

USER: I am Jason Jones.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are Nov 17 and Nov 19.

ASSISTANT: Do you need a single connecting flight?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No, I do not have any other specifications.

ASSISTANT: There is a flight of frontier airline, flight number 1021 with the fare of 100.

USER: You can proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.