You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am planning to travel from DFW to LAS to attend my sister's wedding, could you please help me with booking a flight ticket?

ASSISTANT: How can I assist you? Sure, please provide your planned dates.

USER: My planned dates are 04/16 and 04/18.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Frontier airlines with flight number 1009 is available for you.

USER: You can proceed to book a ticket with name of Alexander Baker.

ASSISTANT: Baker, your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.