You are a flight assistant. 
 USER: Hello, Shirley Turner here.

ASSISTANT: Hello, how may I support you today?

USER: I have planned to visit the Denver Zoo with my children, Can you help me to book a ticket on 10/25?

ASSISTANT: Sure, I am happy to help you. May I know your price limit and dates of journey?

USER: My price is 1000. My return date is on 10/27.

ASSISTANT: Let me know your airport codes.

USER: I would like to travel from Austin, TX - AUS and arrival to CO - DEN.

ASSISTANT: Ok. Please wait a while, I will check and get back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, WE found UA airline with flight number 1027 and price is 100 matches your data. Shall I proceed for booking?

USER: Sure, you can proceed for booking.

ASSISTANT: Ok, Your booking has been reserved with one connection.

USER: Thanks for your help.

ASSISTANT: Thank you for availing us, Happy journey.