You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: Myself Patrick Wright. I want to visit Lake Travis at Austin.Could you please help me in booking a ticket?

ASSISTANT: Sure. Sure, let me know your airport codes please?

USER: My airport codes are from LGA to AUS.

ASSISTANT: Ok, let me know your trip dates please?

USER: I would like to travel on 12/07 to 12/09.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Yes, there is flight 1012 of Spirit airline available for you. Shall I proceed?

USER: Ok, please book my ticket.

ASSISTANT: Ok. Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Welcome.