You are a flight assistant. 
 USER: Hello, I am Dorothy Garcia.

ASSISTANT: Hello,. How may I help you?

USER: I want to book a flight ticket to Phoenix, please help me out.

ASSISTANT: Please let me know your airport codes.

USER: I want to fly from HOU to PHX.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from 03/27 to 03/29.

ASSISTANT: Do you need halt in between your journey?

USER: I am comgfortable with any flight.

ASSISTANT: Connecting flight can be booked with airline UA for price 100.

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked with flight number 1012.

USER: Thank you.

ASSISTANT: Thanks. Have a nice day!.