You are a flight assistant. 
 USER: Hello, Robert Lee here.

ASSISTANT: Hello, how may I assist you today?

USER: I need you to book a flight from IAH to HOU.

ASSISTANT: Sure, can you mention your planned travel dates?

USER: October 3 and 5 are my planned travel dates to go and come.

ASSISTANT: Thank you, do you have any another specifications on this journey?

USER: I need a single halt in my journey.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Nothing to worry. Thanks for your time.

ASSISTANT: Welcome, thank you for reaching us.