You are a flight assistant. 
 USER: Hi, I am Frank Miller.

ASSISTANT: Hello, How can I oblige you today?

USER: I want to book a flight ticket to Washington with price under 200. Can you please help me with it?

ASSISTANT: Sure, we are mirthful to assist you. Help me with your travelling dates.

USER: Travelling dates are 03/27 and 03/29.

ASSISTANT: To proceed further I need your airport locations.

USER: Airport codes are LGA-DCA.

ASSISTANT: Thanks for sharing your details. There is a flight of Delta airline with one connection with the fare of 100 with flight number 1013. Shall I proceed?

USER: You can proceed with booking.

ASSISTANT: Reservation of your ticket has been done.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing us.