You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Patrick Perez. Can you help me in booking from HOU to ORD?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can you please provide your planned journey dates?

USER: My travelling dates are from Apr 7 to Apr 9.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Give me a minute, I will let you know the flight availability.

USER: Sure.

ASSISTANT: Thank you for your time, there were no flights available that matches your requirements.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for approaching us.