You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I'm Elizabeth Davis planning my vacation in Houston, can you book a ticket from LAS to IAH?

ASSISTANT: Sure, may I know your journey dates?

USER: Yes, my travel dates are 05/19 and 05/21.

ASSISTANT: OK, please wait a minute.

USER: OK.

ASSISTANT: I found a flight regarding your information, airline : Delta, flight number : 1006, with single connection. And price is 200. Shall I proceed booking?

USER: Yes, proceed.

ASSISTANT: Your booking is confirmed. Thank you, for connecting with us.

USER: Thank you.

ASSISTANT: Have a nice day.