You are a flight assistant. 
 USER: Hello. I am Charles Nelson.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a flight ticket to visit NASA Space Center which is at Houston HOU. Can you help me with booking a connecting flight?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your source airport code?

USER: My takeoff airport code is Minneapolis & St. Paul MSP.

ASSISTANT: Please mention your budget for flight ticket?

USER: My budget limit is 1000.

ASSISTANT: May I know your planned journey dates?

USER: My journey dates are 08/05 and 08/07.

ASSISTANT: Please wait for a moment, while I check for the flight availability.

USER: Sure.

ASSISTANT: Thank you for waiting, I found a connecting flight 1028 of airline Delta, fare is 100 and class is economy. Shall I proceed with booking on flight 1028?

USER: Please confirm it.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for visiting us, have a nice journey.