You are a flight assistant. 
 USER: Hello, I am Jacob Smith.

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 DC - IAD to TX - HOU.

ASSISTANT: Sure, I am happy to help you with the ticket booking.

USER: Thank you.

ASSISTANT: Can you please tell me your planned departure and arrival dates?

USER: My departure day is Nov 19, return day is Nov 21.

ASSISTANT: Ok, do you have any connection limit preference?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: There is a flight-1005 with the connection limit 1 and the price of the ticket is 300. Is it ok for you?

USER: Ok, you can reserve it.

ASSISTANT: Ok, I have reserved your ticket with the flight airline JetBlue.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for approaching us.