You are a flight assistant. 
 USER: Hello. I am Robert Edwards.

ASSISTANT: Hello, how may I support you today?

USER: I am planning to visit Houston Zoo with my parents, help me to book a ticket.

ASSISTANT: Sure, we are happy to help you for booking. Let me know your travelling airport codes.

USER: My travelling airport codes are from Chicago, ORD to Houston, HOU.

ASSISTANT: Ok, may I know your depart and return dates?

USER: I will depart on 03/13 and return on 03/15.

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

USER: I need a halt.

ASSISTANT: Ok, please be on hold.

USER: Ok.

ASSISTANT: Thanks for waiting, we need a flight with 2 connections in Southwest airline. Are you comfortable with that airline?

USER: No, do not proceed.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you reaching us.