You are a flight assistant. 
 USER: Hello, Andrew Jackson here.

ASSISTANT: Hello, how can I support you?

USER: I want to book a flight ticket to Oakland to meet my cousin and I will come back to Philadelphia on 08/02. Can you help me for booking on 07/31?

ASSISTANT: Sure, Can you please provide your journey airport codes?

USER: Sure, my airport codes are PHL to OAK.

ASSISTANT: Ok, may I know your ticket fare?

USER: My price limit is 1000.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patient, we found a connecting flight in 1001 AA airline with a fare of 200.

USER: Sure, you can proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.