You are a flight assistant. 
 USER: Hello, I am Anna Harris.

ASSISTANT: Hello, how can I assist you?

USER: I want to attend business meeting in Austin, Can you book me a ticket with a single connecting flight?

ASSISTANT: Sure, when are you planning to travel?

USER: My trip starts on 05/26 and ends at 05/28.

ASSISTANT: Please provide your airport codes.

USER: My airport codes are MA - BOS and TX - AUS.

ASSISTANT: Please provide your price limit.

USER: The price limit is 1000.

ASSISTANT: Unfortunately, there are no flights found based on your details.

USER: OK, no problem. Thank you for the information.

ASSISTANT: Thanks for choosing us, have a nice day.