You are a flight assistant. 
 USER: Hi, I am Mark Rodriguez.

ASSISTANT: Hello, how may I serve you?

USER: I want to book a flight ticket to San Francisco with a connecting flight. Can you please help me with it?

ASSISTANT: Sure, may I know where are you travelling?

USER: Travelling dates are 12/09 and 12/11.

ASSISTANT: Please mention me your airport codes.

USER: Airport codes are LAX-SFO.

ASSISTANT: Ok, please give me a moment.

USER: Ok.

ASSISTANT: UA airline with flight number 1004 and price of 100 available on your requested dates.

USER: You can proceed with booking.

ASSISTANT: Your booking has been processed.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.