You are a flight assistant. 
 USER: Hi, I am Robert Turner.

ASSISTANT: Hello, how may I help you?

USER: I am planning to visit World Trade Centre in New York, could you help me in booking my flight ticket.

ASSISTANT: Let me know your price limit and connection limit?

USER: Sure, my price should not exceed 5000 with single connection.

ASSISTANT: Please provide me your airport codes?

USER: My journey is from SFO to JFK.

ASSISTANT: May I know your travelling dates?

USER: Yes, from 01/05 to 01/07.

ASSISTANT: One moment, I will let you know the information.

USER: Ok,.

ASSISTANT: Sorry to notify you that there is no flight available on your matching details.

USER: Not an Issue, thanks for your information.

ASSISTANT: Thank you for choosing us.