You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Larry Clark. I want to go for a comic show to Oakland, OAK. Can you please book a ticket from Philadelphia, PHL?

ASSISTANT: Sure, we are happy to help you. How much you can pay for this ticket?

USER: Price limit should be under 500.

ASSISTANT: May I know your scheduled dates of journey?

USER: Journey dates are 01/06 to 01/08.

ASSISTANT: Do you need any halt in between?

USER: I need connecting flight.

ASSISTANT: Please give me a while.

USER: Sure.

ASSISTANT: Thanks for your patience. We found a flight with Frontier airline and flight number is 1008 matches your requirements.

USER: You can proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.