You are a flight assistant. 
 USER: Hello. I am Sharon Green.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to go for a lunch at Las Vegas with my wife on 10/06. Will you help me to book a return flight on 10/08?

ASSISTANT: Sure, may I know your source and destination?

USER: My source code is Seattle, WA - SEA. My destination code is NV - LAS.

ASSISTANT: Ok, may I know your price limit?

USER: My price limit is 1000.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a Frontier airline, flight number: 1011, price: 100 with one connection.

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you, happy journey.