You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Stephanie Carter. I would like to visit NASA space center at Houston, can you please book me a ticket?

ASSISTANT: sure, when are you planning to travel?

USER: I am planning to travel on 09/09 and return on 09/11.

ASSISTANT: Do you need any connection between your journey?

USER: Yes, I need one halt between journey.

ASSISTANT: May I know your journey codes?

USER: My journey codes are from IAD to IAH.

ASSISTANT: Thank you for providing your journey details, we found a flight with number 1004 and AA as airline. Shall I go with booking?

USER: Yes, you can.

ASSISTANT: Your booking is confirmed.

USER: Thanks for your help.

ASSISTANT: Thank you for availing us.