You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: It's my sister birthday, so I would like to surprise her. Can you please book me a flight ticket with fare of 200?

ASSISTANT: Sure, please provide your connection limit?

USER: I need one connection in between my journey.

ASSISTANT: Could you please mention your travelling days?

USER: My travelling dates are 11/25 and 11/27.

ASSISTANT: May I know your airport abbreviates?

USER: Airport codes are LGA - DEN.

ASSISTANT: To process further we need your name?

USER: David Clark is my name.

ASSISTANT: Thank you for your information. We have found a flight 1002 in Spirit airlines with single connection.

USER: Ok, please proceed with booking.

ASSISTANT: Thank you for approaching us, your ticket has been booked.

USER: Thank you for booking my ticket.