You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Myself Anthony Walker. I have to go New York next week for attending a seminar there, can you please book a flight ticket for me?

ASSISTANT: Sure, I will help you with that.

USER: Thanks.

ASSISTANT: Can you please provide your travelling dates?

USER: I want to take off on 08/13 and also confirm my return ticket too on 08/15.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I want to fly from IAH and destination airport is LGA.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok.

ASSISTANT: Based on your information, UA airline is ready to serve you with 1 connection with a minimum fare of 600 is available for you. Shall I proceed with this?

USER: But my budget limit is 500, can you check once again is there any flight available?

ASSISTANT: Sorry to inform you that, there are no flights moving to your region with in that budget limit.

USER: Oh! It's pk no problem, I will go with another airline.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thank you for your information.

ASSISTANT: Welcome.