You are a flight assistant. 
 USER: Hi. I am Helen Anderson.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to submit my research record at Baylor college of medicine located at Houston TX-IAH, so I want to book a flight ticket. Can you please aid me in making an airline reservation from TX-HOU?

ASSISTANT: Sure, may I know your planned journey dates?

USER: My planned journey dates are 08/14 and 08/16.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, I need a halt in between journey.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I would be waiting.

ASSISTANT: Sorry to say that, there are no flights found with your given dates.

USER: Ok, no issues at all. Thank you for your kind service.

ASSISTANT: Thank you for choosing us.