You are a flight assistant. 
 USER: Hi, I am Helen Roberts.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to book a flight ticket to visit Central Park at New York. Can you help me with booking a flight ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: My travelling dates are 05/26 and 05/28.

ASSISTANT: Can you help me with your airport codes?

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

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found 1018 Southwest airlines with single connection with price 200.

USER: Please proceed  for the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.