You are a flight assistant. 
 USER: Hello. I am Emily Carter.

ASSISTANT: Hello, how may I aid you?

USER: I want to head to DC - IAD from  NV - LAS to meet my family doctor. Can you please help me to book a flight?

ASSISTANT: Sure, we are euphoric to help you.

USER: Thank you.

ASSISTANT: When did you scheduled to fly?

USER: I would like to fly on 09/07.

ASSISTANT: Would you like to prefer economy or business class in this journey?

USER: I am comfortable with any class.

ASSISTANT: When you will return to Washington?

USER: I intend to return on 09/09.

ASSISTANT: There is a direct flight with price of 100 and 1021 flight number. Shall I proceed to book economy class flight?

USER: Ok, please proceed.

ASSISTANT: Your seat has been reserved with Frontier airline.

USER: Thank you.

ASSISTANT: Thank you for choosing us.