You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to attend live music concert at Boston, can you please reserve a flight ticket from AUS to BOS?

ASSISTANT: Sure, can you please let me know your trip dates?

USER: Sure, my planned travelling dates are Dec, 17 and 19 respectively.

ASSISTANT: Do you have any connection limit preference?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Could you help me with your name please?

USER: Sure, my name is Linda Parker.

ASSISTANT: Sorry, there is no flight available for the mentioned dates.

USER: Ok, not an issue.Thank you for your information.

ASSISTANT: Thank you for reaching us.