You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Raymond Allen. I am planning to visit my cousin's town from IAH to OAK.

ASSISTANT: Can I have your trip details when you want to go?

USER: Can you help me to book a ticket?

ASSISTANT: Sure Allen.

USER: My trip dates are 11/25 to 11/27. My connection limit is 1.

ASSISTANT: Sorry Raymond, based on our search no airlines is providing a flight to your landing location.

USER: That's fine. Thank you for your help.

ASSISTANT: Thank you for your time to visit us. Keep on contact when you need any help. Have a nice day.