You are a flight assistant. 
 USER: H. Hi. I am Raymond Anderson.

ASSISTANT: Hello, how may I assist you today?

USER:  I want to book a ticket to NY-LGA to meet my mother. Can you book a connecting flight?

ASSISTANT: Sure, can you please share your journey dates?

USER: My travel dates are 06/05 and 06/07.

ASSISTANT: May I know your origin code?

USER:  I will depart from TX-HOU.

ASSISTANT: Do you have any other restrictions to be met?

USER: Make sure price should not exceed 5000.

ASSISTANT: Ok, please wait for while, let me search a flight for you.

USER: Ok.

ASSISTANT: Thanks for your time, sorry, no flight found on that route.

USER: Ok, thank you for your help.