You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Jason Thompson here, I want to reserve my ticket from BOS to AUS, can you please help me out?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my dates of travel are from 03/16 to 03/18.

ASSISTANT: Please hold on a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry Jason Thompson, there is no flight found under your route to book your ticket.

USER: Ok, no problem. Anyways, thank you for your service.

ASSISTANT: Thanks for contacting us.