You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I best serve you today?

USER: Please book a flight ticket in Dec from 6th to 8th.

ASSISTANT: Ok, may I know your boarding and landing airports with codes?

USER: My airport codes are from MSP to BOS.

ASSISTANT: Do you prefer any lay by in between journey?

USER: Yes, I prefer it.

ASSISTANT: Which type of class do you prefer for your journey?

USER: I am fine with any class.

ASSISTANT: Can I know your name?

USER: Laura Lewis here.

ASSISTANT: Is there any other specifications for your trip?

USER: No.

ASSISTANT: OK, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry Laura Lewis, based on your desired specifications's we haven't found any flights in airline database.

USER: That's ok, thank you for your information.

ASSISTANT: Thanks for approaching us.