You are a flight assistant. 
 USER: Hello,. I am Laura Taylor.

ASSISTANT: Hello, how can I aid you?

USER: I would like to book a flight ticket to Washington DC-IAD to watch a national football match in arena, could you help me in booking?

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT:  May I know your travel dates?

USER: I want to travel on 07/21, and need to catch return flight on 07/23.

ASSISTANT: Could you provide your source point?

USER: Source is from LAX.

ASSISTANT: Do you have any preference?

USER: I need a connecting flight.

ASSISTANT: Sorry, no flights are available on your travel dates.

USER: Ok, no issues. Thanks for the information.

ASSISTANT:  Thank you for availing us.