You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am Lisa Williams. Can you search a flight on 08/09?

ASSISTANT: Sure, can you provide your source and destination airport codes?

USER: Yes, they are PHL and OAK.

ASSISTANT: When is your return date to PHL?

USER: I will be return on 08/11.

ASSISTANT: Here is flight 1000 with 1 connection limit, costing 200. May I proceed with that flight?

USER: I am happy to fly in that flight, please proceed.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Welcome.