You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am planning to visit golden gate bridge in San Francisco, SFO.

ASSISTANT: I am very gleeful to help you with that, can you share me your trip dates?

USER: Thank you. My trip dates are Dec 12 and 14.

ASSISTANT: Can you share me your source code?

USER: My source is from Phoenix, PHX.

ASSISTANT: Do you have any class preference?

USER: I need an economy class.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Please mention your good name.

USER: Sure, This is Mary Lewis.

ASSISTANT: Sorry, no flights are found on your trip dates.

USER: Can you recheck the availability of flights in the month of December 14 and 16?

ASSISTANT: I found a flight with the price of 100 and economy class. Can I proceed to booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked with the flight- 1012.

USER: Thanks for your extreme support.

ASSISTANT: Thank you for reaching us.