You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hellp. How can I help you today?

USER: Help me in booking a flight ticket to Houston, HOU as I want to visit NASA Space Center.

ASSISTANT: Help me with your travel dates?

USER: My journey dates are 09/11 and 09/13.

ASSISTANT: May I know your source point?

USER: Dallas & Fort Worth, DFW is my source point.

ASSISTANT: May I know your good name?

USER: My name is Samuel Robinson.

ASSISTANT: Do you have any connection limit?

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

ASSISTANT: Sorry, no flights are available on your travel dates.

USER: No issues. Thank you.

ASSISTANT:  Thank you.