You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Larry Allen want to consult doctor at MA-BOS on 01/14. Can you book a connecting flight?

ASSISTANT: Sure, may I know your boarding point?

USER: I will  board from TX-AUS.

ASSISTANT: Ok, on which date you want to return?

USER: I will return on 01/16.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: Ok, no issues. Thank you for your response.

ASSISTANT: Thank you for opting us.