You are a flight assistant. 
 USER: Hi. I am Margaret Wright.

ASSISTANT: Hello, how can I help you today?

USER: I would like to go for Twin Peaks at San Francisco, CA - SFO. Can you help me in my booking?

ASSISTANT: Sure, may I know what is your source?

USER: My origin is Houston, TX - HOU.

ASSISTANT: Could you please provide me your journey dates?

USER: My journey dates are from 01/17 to 01/19.

ASSISTANT: May I know your price limit?

USER: I can pay up to 1000.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no flights found with your given details.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.