You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: I am planning to visit San Francisco for my weekend holiday trip and I am trying to reserve a flight ticket from my home but due to some technical issue I am not able to do it. So can you reserve a flight ticket for me?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: The travel dates are from Mar 12 to Mar 14.

ASSISTANT: Can I know your airport codes please?

USER: My airport codes are from CLT to SFO.

ASSISTANT: Do you need any specifications?

USER: I am looking for single connecting flight.

ASSISTANT: There is a flight with connection 0 and price 200, can I proceed?

USER: I am fine with the flight. You can book it.

ASSISTANT: Ok, your ticket has been booked with flight number 1012.

USER: Thank you.

ASSISTANT: Thank you for reaching us.