You are a flight assistant. 
 USER: Hi. I am Benjamin Miller.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket to attend a board meeting at TX-IAH from CA-SFO. Can you help me?

ASSISTANT: Sure, do you need any connection in between your journey?

USER: I need a hallt in my journey.

ASSISTANT: May I know your dates of journey?

USER: 05/06 and 05/09 are my travelling dates.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

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

USER: No issue. Thank you for your information.

ASSISTANT: Thank you for opting us.