You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: I am Sarah Robinson. I want to travel from HOU to IAH. Can you book a flight ticket for me?

ASSISTANT: On which dates you like to travel?

USER: I want to travel in the flight on 06/21 and 06/23.

ASSISTANT: There is a flight with single connection, can I proceed for booking in 1020 flight it cost s you 100?

USER: Proceed to booking.

ASSISTANT: Your booking is done in UA airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.