You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: Can you help me book a flight from Washington in order to spend my time at wynn Las Vegas casino at Las Vegas on the name of Stephanie Adams?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travelling dates are on 07/31 and 08/02.

ASSISTANT: Can you share your airport codes?

USER: I prefer to travel from IAD to reach LAS.

ASSISTANT: May I know your name?

USER: I have already mention it above.

ASSISTANT: We found a flight 1009 with Frontier airline and price 100 with a connection. Shall I proceed?

USER: Yes please.

ASSISTANT: Ok, Your ticket is booked.

USER: Ok, thank you for your service.

ASSISTANT: Thanks for reaching us.