You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Can you please help me in booking my flight ticket from IAD to LAS?

ASSISTANT: Sure, I am glad to help you.

USER: Thank you.

ASSISTANT: Can you please provide your planned dates of travelling?

USER: My planned travelling dates are 09/15 and 09/17.

ASSISTANT: On whose name I have to book the flight ticket?

USER: Sharon Martinez is my name, please confirm my ticket with that name.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok, sure take your own time.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by Spirit airlines. Shall I proceed with this?

USER: Ok, please confirm my ticket.

ASSISTANT: Ok, your ticket has been booked in flight number 1004.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great journey.