You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Eric Lee here, I would like to travel from LGA to DFW, can you please reserve my ticket?

ASSISTANT: Ok, please provide your trip dates to get a flight for you.

USER: Ok, my dates of journey is from 12/13 to 12/15. Please make sure that the price is 500.

ASSISTANT: I found a flight-1025 exactly matched to your criteria with connection 1 and price 100.

USER: Ok, please go ahead with the ticket booking.

ASSISTANT: Ok, your ticket has been done with Southwest airline.

USER: Thank you for your help.

ASSISTANT: Welcome, have a safe flight.