You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Debra Brown, I need to meet my sister who is working at Microsoft at Houston, TX-HOU. Can you please help me with reserving a flight ticket from Austin, TX-AUS?

ASSISTANT: Sure, I can help you. Kindly assign your preferred dates of travelling?

USER: I need to meet my sister on 04/26 and return on 04/28.

ASSISTANT: May I know at what price you are looking for ticket fare?

USER: I can afford up to 200.

ASSISTANT: We found a Spirit airline, flight number:1010 and the price is 100.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.