You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I need to travel from AUS to BOS.

ASSISTANT: Sure, please share me your journey dates?

USER: Can you please help me to book my flight ticket?

ASSISTANT: Sure, provide me your journey dates?

USER: Ya sure.

ASSISTANT: OK.

USER: My depart is on 05/09 and returning is on 05/11.

ASSISTANT: OK, please wait for few minutes.

USER: OK.

ASSISTANT: Please provide me your name?

USER: Edward Turner.

ASSISTANT: There are no flight with your requirement.

USER: OK. Thank you for the information.

ASSISTANT: Thank you, for reaching us.