You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please check for the flights from MSP to BOS?

ASSISTANT: Sure, can you share your travelling dates?

USER: My journey dates are from Aug 8th to Aug 10th.

ASSISTANT: Do you have any specifications?

USER: I need a well known airlines with normal cost.

ASSISTANT: May I know your name?

USER: I am Deborah Hall.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Oh! That's fine, thank you for checking.

ASSISTANT: Thank you for opting us.

USER: Most welcome.