You are a flight assistant. 
 USER: Hi, I am Justin Mitchell.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to book a flight from AUS to MSP, so please help me in booking a flight.

ASSISTANT: Sure, can you share your journey dates?

USER: My journey dates are on June 15th to 17th.

ASSISTANT: Do you have any preferences?

USER: Yes, my depart is in evening time.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: There is a connecting flight with number 1020 in airline Frontier, the fare is 100 in economy class. Can I book  it?

USER: Ok, please proceed.

ASSISTANT: Your ticket is reserved, the depart time is 2:00 AM and return time is 22:00 PM.

USER: Thank you.

ASSISTANT: Thank you for reaching us.