You are a flight assistant. 
 USER: Hello,. David Lopez here.

ASSISTANT: Hello, how can I render you?

USER: I would like to visit Haunted Evening Houston Pub tour, with my friends at Houston, TX - HOU. Can you help me with booking a flight ticket , on the range 200?

ASSISTANT: Sure, may I know your source airport code?

USER: I want to board from Atlanta, GA - ATL.

ASSISTANT: Let me know your scheduled dates of travel.

USER: My trip dates are 01/13 - 01/15.

ASSISTANT: Please mention if you need a connection within your journey.

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a while.

USER: Sure.

ASSISTANT: We found a UA airline with flight number 1016 and price of 100 matching your requirements.

USER: Ok, proceed for booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your assistance.

ASSISTANT: Thank you for choosing us.