You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My name is David White, I want to book a flight from St.Paul to Austin. Can you book a connecting flight for me?

ASSISTANT: Sure, I will help you in booking. Please share your planned journey dates?

USER: I will fly on 03/19 and return on 03/21.

ASSISTANT: Ok, let me know your boarding and landing airport codes?

USER: My source point is MN-MSP and destination is TX-AUS.

ASSISTANT: Ok, do you have any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a direct flight of Southwest airline. Do you like me to proceed?

USER: Please proceed with booking.

ASSISTANT: Ok, your ticket has been processed with flight- 1005, price- 100.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.