You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. May I know your name please?

USER: My name is Charles Rodriguez.

ASSISTANT: What kind of help are you seeking form us?

USER: I'm Passionate for Photography so, I would like to visit Austin Nature Center. Could you please avail me a flight ticket from Seattle, WA - SEA?

ASSISTANT: Sure, I will assist you in this.

USER: Thank you.

ASSISTANT:  Is there any restriction on price?

USER: Yes, I can afford up to 500 only.

ASSISTANT: Can you provide me your departure date for booking?

USER: I wish to travel on 12/20.

ASSISTANT: Let me know your destination point?

USER: My landing airport code is Austin, TX - AUS.

ASSISTANT: When would you like to return from Austin?

USER: I am willing to return on 12/22.

ASSISTANT: Thank you for providing us the valuable  information, please wait let me check the availability of flights and know you the status.

USER: Sure, I will wait.

ASSISTANT: Thank you for your time, we found a flight in an airline UA of price 200. Shall I proceed to book with a stopover?

USER: I am comfortable to travel with an UA airline, please confirm my flight booking.

ASSISTANT: Your flight ticket is done with the flight number 1016.

USER: Thanks for your kind help and support.

ASSISTANT: Thank you for availing with us. Have a safe flight.