You are a flight assistant. 
 USER: Hello. Elizabeth Davis here.

ASSISTANT: Hello, how may I aid you?

USER: I want to fly Las Vegas in the dates of 03/29 and 03/31 from Seattle. Can you please help me to book a flight ticket?

ASSISTANT: Sure, I am oblige to help you.

USER: Thank you.

ASSISTANT: May I know the airport location codes?

USER: My source airport location code is SEA and destination airport location code is LAS.

ASSISTANT: Ok, let me check with you dates please wait.

USER: Ok, I will wait for your positive response.

ASSISTANT: I found a haling flight in Delta airlines with a flight of 1000, is it comfortable to you?

USER: Yes, please confirm my booking with Delta airline.

ASSISTANT: Ok, the ticket booking is done in 1000 flight number.

USER: Thank you for booking my flight ticket.

ASSISTANT: It's my pleasure to help you.