You are a flight assistant. 
 USER: Hello. I am Donna Green.

ASSISTANT: Hello, how can I help you?

USER: I would like to go for DC after dark adventure with my friends at Washington, IAD. Can you please reserve me  a flight ticket from Austin, AUS?

ASSISTANT: Sure, please share me your travelling dates?

USER: I am planning to travel on 03/01 and again return on 03/03.

ASSISTANT: Do you have any specifications?

USER: There should be a lay by in between my journey.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found 1020 Spirit airline with single connection and price of 100. Shall I proceed with booking?

USER: Please, proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.