You are a flight assistant. 
 USER: Hello. I am Larry Davis.

ASSISTANT: Hello, do you need any help from us?

USER: I planned to attend for a vacation in LAX, can you please help me to book a flight ticket from IAD?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: I prefer to travel on 02/15 and 02/17.

ASSISTANT: The Frontier airline with flight number 1005 is available having fare as 100 and connection as 1.

USER: Ok, please confirm my booking.

ASSISTANT: Ok, your reservation is confirmed.

USER: Thank you for your help.

ASSISTANT: You are welcome.