You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Andrew Nelson here. I want to travel from Austin to Boston for attending an event which is conducted by my friends. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you out. May I know your travelling dates please?

USER: My departure date is 09/13 and return date is 09/15.

ASSISTANT: Can I know your airport codes too?

USER: My airport codes are from AUS to BOS.

ASSISTANT: Ok, please wait for a while.

USER: Ok, I will wait. Make sure my connections limit is 1.

ASSISTANT: Sorry, there are no flights found on these dates.

USER: Anyway, thank you for the information.

ASSISTANT: Thank for reaching our services.