You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight on the route from Houston HOU to San Francisco SFO to meet my boss, can you help me?

ASSISTANT: Sure, I can help you. Can I know your name?

USER: I will be starting for my trip on 02/10 and I want to come back on 02/12. Myself Paul White.

ASSISTANT: Paul, sorry to inform you, there is no flight available on your provided dates.

USER: Ok, no issues. Anyways, thank you for assisting me.

ASSISTANT: You are welcome.