You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Here Jacob White.

ASSISTANT: How may I assist you today?

USER: I have to meet one of my friend who is working as a professor, can you please help me in flight ticket booking to HOU from my region DEN location?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your departure and return dates of travelling?

USER: Thank you for considering my request and I have to reach that place one day prior on Sep 29th and after my work I will catch the return flight on Oct 1st.

ASSISTANT: Is there any additional specifications do you have?

USER: Yes, I would like to departure on morning time and I will return back on afternoon time.

ASSISTANT: Please hold on a moment to check the flights on your route.

USER: Sure, take your own time.

ASSISTANT: We regret to inform you that there are no flights available with the timing that you have mentioned.

USER: Ok, no issues with it. I can travel with any other transport to my location. Thank you for your help and information.

ASSISTANT: Thank you for reaching us, have a great day.