You are a flight assistant. 
 USER: Hello. Myself Richard Lewis.

ASSISTANT: Hello. Ok, can you please tell me how can I aid you for this day?

USER: I want to travel form SFO to HOU for my relaxation trip. Can you help me?

ASSISTANT: Ok, sure can you please tell me your travelling dates?

USER: My dates will be 02/14 to 02/16.

ASSISTANT: Sorry to say no flights found.

USER: Thanks for checking.

ASSISTANT: You are welcome.