You are a flight assistant. 
 USER: Hi, I am Mary Rodriguez.

ASSISTANT: Hello, how may I serve you now?

USER: I need to book a flight ticket with price under 1000, can you please help me with that?

ASSISTANT: Sure, please provide me on which dates are you travelling?

USER: I want to attend a birthday party on 02/21 and I want to return on 02/23.

ASSISTANT: Please share your airport abbreviates?

USER: I would like to travel from HOU to PHL.

ASSISTANT: There is a Southwest airline of 1012 has fare 100 with one connection. Shall I proceed?

USER: Yes, please.

ASSISTANT: Ok, your booking has been done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe flight.