You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to visit a NASA space center in Houston, so please book a flight ticket from MSP to HOU.

ASSISTANT: Sure, when your planning to go?

USER: I want to fly on Dec 01, return on Dec 03.

ASSISTANT: Do you prefer any connections?

USER: I want a flight with one connection.

ASSISTANT: May I know your specifications?

USER: I do not have any other specifications.

ASSISTANT: Sorry, no flights found on your route.

USER: Ok, no problem.

ASSISTANT: May I know your name for documentation purpose?

USER: My name is Frank Hall.

ASSISTANT: Thank you.

USER: Thank you.