You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Brenda Gonzalez.

ASSISTANT: How may I serve you?

USER: I am planning to visit golden gate bridge in San Francisco, SFO. Can you help me to book a connecting flight?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are July 12 and 14.

ASSISTANT: May I know your source code?

USER: I want to start from Austin, AUS.

ASSISTANT: Please standby.

USER: Sure, but I want to return in the evening time.

ASSISTANT: Thank you for waiting and we have found a flight in an economy class with 1 connection in United airlines and the fare of your flight will be 200. Do you like me to proceed your booking with this flight?

USER: Please proceed.

ASSISTANT: Your flight ticket has been booked with 1012 number having it's return time in the evening.

USER: Thank you.

ASSISTANT: Thank you for reaching us.