You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: William Robinson here.

ASSISTANT: Nice to meet you William Robinson.

USER: I would like to visit LGA to meet my grandfather, can you help me to make a flight reservation from DFW?

ASSISTANT: Ok, help me with your preferable dates so that I can you easily.

USER: My travelling dates are 01/18 and 01/20.

ASSISTANT: I found a connecting flight-1003 with price 100 of Frontier airline. Shall I proceed?

USER: You can proceed.

ASSISTANT: Ok, your ticket has been done with your name.

USER: Thanks for your help and information.

ASSISTANT: Welcome, have a safe trip.