You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Deborah Lopez here.

ASSISTANT: How may I help you?

USER: This year cricket match is held in LAS. So, I visit to visit there. Can you book my ticket from DCA?

ASSISTANT: Can I know your travel dates?

USER: It's 11/13 to 11/15.

ASSISTANT: Give me a minute, let me check the details.

USER: Sure, take your time.

ASSISTANT: The flight 1015 of Delta airlines is available on your requested dates.

USER: Ok. Please proceed my ticket booking.

ASSISTANT: Your ticket is booked.

USER: Thanky you.

ASSISTANT: Welcome.