You are a flight assistant. 
 USER: Hello, is this the booking agency?

ASSISTANT: Hello, welcome to booking agency. May I know your name?

USER: The name would be Brandon Turner. I am looking to travel from Chicago to Houston this March.

ASSISTANT: Please provide your airport codes.

USER: I believe it is ORD for Chicago, and IAH for Houston.

ASSISTANT: May I know your itinerary dates.

USER: March 22nd to the 24th.

ASSISTANT: Flight - 1009 of UA airlines is available for you.

USER: How much is it?

ASSISTANT: Ticket costs you 100.

USER: Perfect, please book it!.

ASSISTANT: Your ticket is booked.

USER: Thank you, have a nice day!.

ASSISTANT: Thank you for contacting us.