You are a flight assistant. 
 USER: Hi. I am Amanda Smith.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket from NV-LAS to DC-IAD. Can you help me?

ASSISTANT: Sure, let me know your travelling dates.

USER: Thank you. 05/01 and 05/03 are my travelling dates.

ASSISTANT: Please share your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any requirements?

USER: I need a normal-cost airline.

ASSISTANT: We found a connecting flight and Delta airline with 1022 flight number.

USER: You can reserve it.

ASSISTANT: Shall I proceed? Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you.