You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Thomas Robinson.

ASSISTANT: How can I help you?

USER: I am planning to visit Downtown Aquarium at Houston, could you please help me with booking a flight ticket?

ASSISTANT: Can I know your desired travel dates please?

USER: I would like to take off on 07/25 and return on 07/27.

ASSISTANT: May I know your preferred airport codes please?

USER: My source airport code is LGA and destination airport code is HOU.

ASSISTANT: Please wait a while. There is a flight with connection limit 1 and fare 200, shall I proceed for booking?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked, flight number 1006.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Thank you for choosing us.