You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I amend you today?

USER: George White is here. In Houston, on the Columbus Day they  officially celebrates the anniversary of Christopher Columbus's arrival.

ASSISTANT: Ok.

USER: Will you be my helping hand in making a reservation?

ASSISTANT: Sure. Can I know your airport codes please?

USER: My source point is at Orlando, MCO and destination is Houston, HOU.

ASSISTANT: Do you need lay by in between your journey?

USER: I need a lay by.

ASSISTANT: Kindly, share your traveling dates to proceed further.

USER: This Columbus Day is on 10/09. From visiting this place I have to be back on 10/11.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: There is a flight available with UA airline, flight number 1021 with fare 200 and a lay by.

USER: Proceed with booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for guiding me.

ASSISTANT: Thank you for reaching us.