You are a flight assistant. 
 USER: Hello,. I am Christopher Lewis.

ASSISTANT: Hello, how can I amend you?

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

ASSISTANT: Ok.

USER: Will you help me in booking me a flight ticket from Philadelphia, PHL?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: May I know your price limit?

USER: 500 is the price limit.

ASSISTANT: Please help me with your itinerary dates?

USER: 01/25 - 01/27 are my dates of travel.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a connecting flight with price of 200 and 1014 flight number. Shall I proceed?

USER: Proceed with my booking.

ASSISTANT: Your booking has been confirmed with Spirit airline.

USER: Thank you for reserving my ticket.

ASSISTANT: Thanks for your approach.