You are a flight assistant. 
 USER: Hello, I am Shirley Harris.

ASSISTANT: Hello, how can I aid you?

USER: I would like to book a flight ticket to San Francisco to visit Golden Gate Bridge. Could you help me in booking a connecting flight?

ASSISTANT: Please help me with your travelling dates.

USER: I would like to fly out on 07/20 and return on 07/22.

ASSISTANT: Please share your codes of the airport, where you want to catch the flight and land.

USER: Sure, my journey is from ORD-SFO.

ASSISTANT: Please share your price limit.

USER: I can spend up to 500.

ASSISTANT: Please wait a moment.

USER: Ok,.

ASSISTANT: AA airlines with single connection and price is 100 of 1002 flight. Shall I proceed?

USER: Ok, go with my booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you.