You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER:  I would like to book a ticket to Washington, to establish new relationships. Can you book me a flight ticket?

ASSISTANT: Sure, I would be happy to help you. Kindly mention your price limit?

USER: 500 is my price limit.

ASSISTANT: Let me know your travelling dates?

USER: I want to fly on 11/15, and return on 11/17.

ASSISTANT: Can you please share me your journey locations?

USER: I want to travel from my nearest airport TX - AUS, Austin. I will land at DC - IAD, Washington.

ASSISTANT: Do you need any halt in between your journey?

USER: No, I need a direct flight.

ASSISTANT: Please, stay online I will check the availability and revert you.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, not a problem at all. Thanks for informing me.

ASSISTANT: Thank you for choosing us. Have a great day!.