You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Hernandez.

ASSISTANT: How may I guide you today?

USER: Can you please help me in making an airline reservation from AUS to BOS?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My journey dates are May 11th and May 13th.

ASSISTANT: Do you have class preference?

USER: No.

ASSISTANT: Is there any connection limit?

USER: Yes, I need a flight with single connection.

ASSISTANT: Do you have any specifications?

USER: The depart time should be evening.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you.