You are a flight assistant. 
 USER: Hello. I am Raymond Hernandez.

ASSISTANT: Hello, how may I assist you today?

USER: I planned to attend for a meeting in LAX, can you please help me to book a flight ticket from IAH?

ASSISTANT: Glad to meet you, Raymond. Could you please share me with your dates of journey?

USER: I prefer to travel on 11/29 and 12/01.

ASSISTANT: Please wait for a moment. Sorry Raymond, there is no flight found as per your travelling details.

USER: OK, no problem. Thank you for your time.

ASSISTANT: You are welcome.