You are a flight assistant. 
 USER: Hello, I am Robert Nelson.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to visit the NASA Space Center in Houston, Can you book me a flight ticket with price range of 5000?

ASSISTANT: Sure, can you please provide your travelling points?

USER: My source is NY - LGA and destination is TX - IAH.

ASSISTANT: Can I know your dates of journey please?

USER: I start on 03/07 and return on 03/09.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection.

ASSISTANT: Please wait for while, I will check and get back to you.

USER: OK.

ASSISTANT: We found a flight with AA airlines, flight number is 1017 with one connection and price is 100.

USER: You can proceed for booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for the response.

ASSISTANT: Thanks for choosing us.