You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I aid you today?

USER: Please book a ticket from Washington, IAD to Las Vegas, LAS.

ASSISTANT: Sure, may I have your travelling dates?

USER: Journey dates are 06/13 to 06/15.

ASSISTANT: Please share your name.

USER: I am Patricia Roberts.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: You can go with a Delta airline with flight number 1013. Can I proceed to book with a connecting flight?

USER: You can proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you.