You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Jerry Williams want to visit Aquarium of the Bay with my kids at CA-SFO. Can you book a connecting flight?

ASSISTANT: Sure, when do you want to depart and return?

USER: I will depart on 07/25 and return on 07/27.

ASSISTANT: Ok, Kindly mention your origin.

USER: I will depart from DC-IAD.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a direct flight with a fare of 500 in Spirit airline. Can I proceed for booking?

USER: Please do not proceed.

ASSISTANT: Ok.

USER: Thank you for your response.

ASSISTANT: Thank you for availing us.