You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I be of your assistance?

USER: I would like to visit a golden gate bridge at San Francisco, SFO so, can you please assist me in booking a flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to travel on 09/21 and return on 09/23.

ASSISTANT: Can you please provide your destination code? Please provide your source code.

USER: My source is from New York, LGA.

ASSISTANT: Let me know your good name.

USER: My name is David Lewis.

ASSISTANT: There is a flight found with number 1001 and Frontier as airline. The cost of the ticket is 100.

USER: Ok, you can proceed with my booking.

ASSISTANT: Your ticket is booked, with a connecting flight.

USER: Thank you for booking my ticket.

ASSISTANT: Thanks for choosing us.