Hi.
Hello.
My name is David Thompson.
How may I assist you?
 I am planning to travel from SFO to DFW to attend my sister's wedding, could you please help me with booking a flight ticket?
Can you please share on what dates you are willing to travel?
The travelling dates are from 04/05 to 04/07.
Sure, please give me a moment, I will look for the best service on this route.
Ok.
According to your dates, there is 1 flight available with UA airlines, shall I proceed your booking?
You can proceed booking my ticket.
Your ticket is confirmed, flight number is 1000.
Thank you for your help.
You are welcome. Have a safe journey.