You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Amanda Roberts here.

ASSISTANT: How may I assist you today?

USER: I wan to travel from MA-BOS to MN-MSP to meet my family members. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you with that. Could you please provide your preferable dates of travelling?

USER: My departure date is 10/18 and return date is 10/20.

ASSISTANT: Please wait a moment to check the flights.

USER: Ok, take your time.

ASSISTANT: Sorry to inform you that, there are no flights available in your travel locations with your requested dates of travelling.

USER: So sad for that.

ASSISTANT: Sorry for the inconvenience.

USER: Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us, have a great day.