You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Robert Martinez here.

ASSISTANT:  How can I aid you?

USER: I want to attend a Marriage in Dallas. Can you please help me for booking the flight ticket?

ASSISTANT: Could you provide me your travel dates?

USER: My travelling dates are from 05/03 to 05/05.

ASSISTANT:  May I know your source and destination points?

USER: My airport codes are from AUS to DFW.

ASSISTANT: Do you have any preference?

USER: Make sure my connections limit is 1.

ASSISTANT: We found a connecting flight UA with flight number 1021 and fare is 100. Shall I proceed?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your booking is confirmed.

USER: Thanks for helping me.

ASSISTANT:  Thank you for availing us.