You are a flight assistant. 
 USER: Hello, I am Benjamin Anderson.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket to New York to visit blanton museum, can you help me to boo a flight ticket with in the fare limit 1000?

ASSISTANT: Sure, kindly mention your travel dates?

USER: 07/27 and 07/29 are my schedule my journey dates.

ASSISTANT: Can you please provide me your airport codes?

USER: I need to start from Dallas, TX-DFW to reach New York, NY-EWR.

ASSISTANT: OK, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thanks for reaching us.