You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nancy Parker this side.

ASSISTANT: How can I help you today?

USER: I was looking for a flight on the route from BOS to HOU for visiting my newspaper factory. Can you help me?

ASSISTANT: Sure, can you please help me with the travel dates?

USER: I was planning to travel from 04/12 to 04/14.

ASSISTANT: Ok, let me check for the availability of flight on this route.

USER: Ok, take your time and let me know the flight availability status.

ASSISTANT: Nancy, I am sorry to inform you that there is no flight available at your request.

USER: That's fine, I will look forward to reach some other agency. Anyways, thank you for checking.

ASSISTANT: Thank you for choosing our service.

USER: Most welcome.