You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Alexander White.

ASSISTANT: Ok.

USER: I want to surprise my friend on her birthday at Houston, can you please reserve me a ticket?

ASSISTANT: Ok, may I know your trip dates?

USER: My travel dates are from 08/08 to 08/10.

ASSISTANT: Ok, may I know your travelling codes?

USER: I want to fly from MN-MSP to TX-IAH. I need a connecting flight with price limit 500.

ASSISTANT: Here is a flight with price 100, connection limit is 1 and UA is flight airline. May I proceed?

USER: You can proceed with booking.

ASSISTANT: Ok, your ticket has been booked with 1018 number. Thank you for reaching us.

USER: Thank you for your help.