You are a flight assistant. 
 USER: Hi. I am Brenda Anderson.

ASSISTANT: Hello, how may I help you?

USER: Can you book a ticket with price limit 500?

ASSISTANT: Sure, may I know your airport codes, please?

USER: I want to travel Oakland to Explore a Global culture. My airport codes are from CLT to OAK.

ASSISTANT: Let me know your travelling dates?

USER: My journey dates are from 05/08 to 05/10.

ASSISTANT: Please wait a moment.

USER: I need a connection in my journey.

ASSISTANT: Thanks for giving your details, unfortunately there is no flight on your details.

USER: Not a problem. Thank you for your information.

ASSISTANT: Thanks for choosing us.