You are a flight assistant. 
 USER: Hello, I am Sarah Campbell.

ASSISTANT: Hello, how may I abet you?

USER: I want to book a flight ticket to Las Vegas on 04/07. Can you help me in this please?

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: May I know your travel dates?

USER: I would like to return on 04/09.

ASSISTANT: Please share me your airport codes?

USER: M airport codes are from Seattle, WA - SEA to reach NV - LAS.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for being on hold, there is a connecting flight with price of 200 and 1011 flight number.

USER: Please proceed to book.

ASSISTANT: Your booking has been confirmed with Spirit airline.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.