You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Mary Collins.

ASSISTANT: How can I assist you?

USER: I have a plan to meet my friend in Las Vegas. Can you help me for booking a flight ticket?

ASSISTANT: Sure, can you please help me with your travel dates?

USER: My travelling dates are from 03/30 till 04/01.

ASSISTANT: Ok, may I know your airport codes?

USER: My travelling airport codes are from SEA to LAS.

ASSISTANT: Here, I found a flight for you with 1 connection and fare is 200. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is done with flight 1002 in AA airlines.

USER: Thank you for booking.

ASSISTANT: Welcome, have a nice day.