You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Clark.

ASSISTANT: How can I assist you, David?

USER: I am planning to visit Boston, BOS. Can you please book me a ticket from Orlando, MCO?

ASSISTANT: Sure, please provide me your journey dates.

USER: My preferable journey dates are from 07/19 to 07/21.

ASSISTANT: Please give me a minute.

USER: Sure, take your own time.

ASSISTANT: I found a flight in Frontier airlines with price 100. Shall I book the ticket for you?

USER: Please reserve my ticket with this airlines.

ASSISTANT: Your ticket is processed and the flight number is 1006.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for utilising our services.