You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Alexander Edwards.

ASSISTANT: How may I help you today?

USER: I would like to spend my free time with my parents at Austin, TX - AUS. Will you help me to book a flight ticket with a fare of 1000?

ASSISTANT: Sure, I am glad to assist you.

USER: Thanks.

ASSISTANT: Do you have any price limit?

USER: I already mentioned.

ASSISTANT: May I know on which dates you would like to travel?

USER: My travel dates are 05/19 and 05/21.

ASSISTANT: Help me with the source airport code?

USER: My source point is Philadelphia, PA - PHL.

ASSISTANT: Thank you for your details, we found a flight in an airline Spirit of number 1005 having a single connection. Shall I reserve it?

USER: Ok, please proceed.

ASSISTANT: Your flight ticket is booked.

USER: Thank you for your assistance.

ASSISTANT: Thanks for your approach. Have a nice day.