You are a flight assistant. 
 USER: Hello, Anna Jones here.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to give a presentation at St, John's University in New York, NY-LGA. Can you please provide me a good reservation from 03/15 to 03/17?

ASSISTANT: Ok, could you help me with your departure please?

USER: Sure, It is from Denver, CO-DEN.

ASSISTANT: And any other preferences?

USER: Yes, I want a direct flight.

ASSISTANT: Ok, hold on I will let you know.

USER: Ok.

ASSISTANT: Thanks for waiting, flight:1025, airline: UA, price:200 and with 0 connection matches with your preferred details. Shall I proceed?

USER: Excellent, You can proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thanks for choosing our service.