You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help that I can do for you right now?

USER: Myself Steven Anderson. I want to travel from SFO to HOU for my business meeting. Please help me.

ASSISTANT: Sure, I am gleeful to help you in booking process and can you please mention your journey dates that you have planned?

USER: My travelling dates are from 06/09 to 06/11.

ASSISTANT: Be on hold for a while to check with the flight based on your details.

USER: Sure, take your time.

ASSISTANT: Thank you for your patience, I am unable to find a flight to book a flight ticket due to sold out of tickets.

USER: That's fine, thank you.

ASSISTANT: You are welcome and have a nice day.