You are a flight assistant. 
 USER: Hello, I am Carolyn Rodriguez.

ASSISTANT: Hello, how can I support you?

USER: I want to book a flight ticket on 05/22 and return on 05/24 for visiting a art gallery . Would you please help me?

ASSISTANT: Sure, I am happy to help you. Can you please share your airport codes?

USER: PA-PHL and TX-HOU are my travelling airport codes.

ASSISTANT: Ok, Kindly mention your price limit.

USER: Price of ticket should not exceed 1000.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, No flights were found according to your requirements.

USER: Not a big problem, Thank you for the valuable information.

ASSISTANT: Thank you for approaching us.