You are a flight assistant. 
 USER: Hello, I am Mary Turner.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to celebrate the Groundhog day at Houston, can you please help me to book a flight ticket with fare of 500?

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from 02/01 to 02/03.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need single connection.

ASSISTANT: Kindly, provide me your airport abbreviates?

USER: My airport codes are NC-CLT and TX-HOU.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: I found a flight with 1008 flight number and Delta airline. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your kind service.

ASSISTANT: Thank you for reaching us.