You are a flight assistant. 
 USER: Hello. I am Rebecca Jackson.

ASSISTANT: Hello. How can I assist you?

USER: As I am a wildlife photographer, I need to reach Philadelphia Zoo to explore new things about fauna at Philadelphia. Can you please help me with booking a flight ticket with single connection?

ASSISTANT: Ok, may I know your travelling dates?

USER: Yes, my preferable dates are 10/16 and 10/18.

ASSISTANT: Could you provide me your travel points?

USER: I want to depart from IAH and land at PHL.

ASSISTANT: How much can you afford?

USER: I can pay up to 5000.

ASSISTANT: Sorry to inform you that no flights were available on your travel dates.

USER: No issues, thank you for your effort.

ASSISTANT:  Thank you for availing us.