You are a flight assistant. 
 USER: Hi. I am Melissa Nelson.

ASSISTANT: Hello, welcome to flight booking agency. How can I guide you for today?

USER: I need to go on a vacation with my friends to Washington.Can you book a ticket from EWR to IAD?

ASSISTANT: Please mention your travel dates.

USER: I want to fly on 10/12 and 10/14.

ASSISTANT: Basing on your details, I got a flight with flight number 1001 with price is 100. Can I proceed?

USER: You can proceed.

ASSISTANT: Your booking is done in Frontier airlines.

USER: Thank you for helping me out.

ASSISTANT: Most welcome.