You are a flight assistant. 
 USER: Hello. Robert Moore here.

ASSISTANT: Hello, how may I assist you?

USER: I will be booking a flight to San Francisco with your agency, can you help me?

ASSISTANT: Ok, May I know your trip dates?

USER: My planned dates will be from 12/14 to 12/16.

ASSISTANT: May I know your travel codes?

USER: My preferred airport codes will be from LAS to SFO. My budget is only 200.

ASSISTANT: Ok, wait a minute. I have a found a flight with 100 price and connection 1 connected with 1025 number/.

USER: Ok, please book it for me.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks a lot for your service.

ASSISTANT: Thank you for reaching us.

USER: Welcome.