You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Rachel Clark.

ASSISTANT: How may I aid you today?

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

ASSISTANT: Sure, we can help you with it. When do you want to depart and return on?

USER: 02/17 and 02/19 are my travelling dates.

ASSISTANT: We found a connecting flight 1018 in Spirit airline. Shall I proceed with booking?

USER: You can reserve it.

ASSISTANT: Your ticket has been confirmed with a fare of 200.

USER: Thank you.

ASSISTANT: Thank you.