You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your good name?

USER: My name is Nicholas Martin.

ASSISTANT: How can I assist you today Martin?

USER: I want to book a flight ticket with a price limit of 200 for visiting a Caswell house in Austin.

ASSISTANT: Sure, may I know your travelling dates?

USER: My departure day is 01/24, return day is 01/26.

ASSISTANT: Can you please share your source and destination?

USER: My source and destinations are Boston, MA-BOS, Austin TX-AUS.

ASSISTANT: Please wait for a moment. I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we found an airline: Frontier, flight number: 1003 and price is 100.

USER: You can proceed to booking.

ASSISTANT: Your flight ticket has been confirmed with a single connection.

USER: Thanks for your service.

ASSISTANT: Thanks for connecting with us. Have a safe journey.