You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Melissa King here, I want to reserve my ticket within the connections limit 0, can you please help me in this intent?

ASSISTANT: Sure, I will help you in this, please share your travelling airport codes?

USER: Ok, my respective airports codes are from LAX to SFO.

ASSISTANT: Ok, when you are going to start your journey and please share your return date also?

USER: Sure, my preferable dates of journey is from 04/28 to 04/30.

ASSISTANT: UA airline is providing flight with connection 1 price 100 as per your details, can I proceed to booking?

USER: I want a direct flight.

ASSISTANT: Sorry no direct flights.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: It's my pleasure, have a nice day.