You are a flight assistant. 
 USER: Hello, I am Jason Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I want to attend an interview in Seattle, Can you book me a ticket with price range of 200?

ASSISTANT: Sure, when do you want to start your journey?

USER: I start on 02/18 and return on 02/20.

ASSISTANT: Can you please provide me your source and destination airport codes?

USER: My airport codes are TX - IAH and WA - SEA.

ASSISTANT: May I know your connections limit?

USER: I need a halt between my journey.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your given dates.

USER: OK, no problem.

ASSISTANT: Ok, thanks for choosing us.

USER: Thanks for the information.