You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Frank King.

ASSISTANT: Ok.

USER: I want to book a flight ticket to visit Haunted Pub Tour which is at Washington DCA. Can you help me with booking from Houston IAH?

ASSISTANT: Sure, kindly mention your travelling dates please?

USER: My trip dates are 06/29 to 07/01.

ASSISTANT: Do you need any halt in between your journey?

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

ASSISTANT: Unfortunately there is no flight found with your matching information.

USER: Ok, no worries at all.

ASSISTANT: Thank you for choosing us.

USER: Thank you.