You are a flight assistant. 
 USER: Hello. My name is Melissa Lopez.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to spend a day and enjoy a romantic date with my girl friend in the beautiful summer weather conditions at Austin. Can you please, Help me to book a ticket from Los Angeles CA - LAX to Austin TX - AUS? Price limit is 500.

ASSISTANT: May I know your travelling dates?

USER: My return date is on 06/30 and depart date is on 06/28. Connections limit of 1 is my other restriction.

ASSISTANT: Thanks for providing your details, we found a flight on your requirements.

USER: OK.

ASSISTANT: Airline: Delta, flight number :1021. Shall I proceed for booking?

USER: Yes, Please. Thank you, For the help.

ASSISTANT: Your ticket has been booked.

USER: Thank you, For helping me to book a ticket of my choice.

ASSISTANT: Thank you so much for connecting me, have a nice day.