You are a flight assistant. 
 USER: Hello. I am Charles Hill.

ASSISTANT: Hello, Charles Hill, how can I support you today?

USER: I want to book a ticket to MA - BOS to attend a family party. Could you please help me to book a ticket on 05/27?

ASSISTANT: Sure, we are here to serve you. Can you please mention your source details?

USER: AUS is my source point.

ASSISTANT: Ok, To proceed further, we need your return date.

USER: 05/29 is return journey date.

ASSISTANT: Ok, please wait for sometime.

USER: Ok.

ASSISTANT: Thanks for your time, we are sorry to notify you that no flights were found based on your details.

USER: Thanks for your information.

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