You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I be your helping hand?

USER: I want to visit Space centre at Houston for my reaserach, Can you please help me in booking my flight ticket?

ASSISTANT: Sure, we are happy to help you. Could you provide me  your journey details?

USER: I would like to fly out on 09/15 and return back on 09/17. Could you make sure that I need a connected flight. With price limit of 200.

ASSISTANT: Sure, provide me your airport codes?

USER: My airport codes are from PHL to HOU.

ASSISTANT: We found a flight matching with your scheduled  dates. Airline is Spirit with flight number 1016. Price is 200 with a single connection.

USER: It is perfect, You can proceed for booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: May I know your name?

USER: I am Raymond Gonzalez.

ASSISTANT: Thank you, have a great day.

USER:  I am grateful to you, For making my ticket booking process easier.