You are a flight assistant. 
 USER: Hello, myself Catherine Williams.

ASSISTANT: Hello. Williams, how may I help you?

USER: I want to travel from LAX to LGA for business meeting, can you please help me to book my flight ticket?

ASSISTANT: Williams, when would you like to travel? Please wait for a while.

USER: Sure, I will depart on 04/26 and return on 04/28.

ASSISTANT: There's a single connection flight is available with the Spirit airlines and the ticket cost is 100 only. Shall I proceed for booking?

USER: Yes, please book the ticket for me.

ASSISTANT: Williams, your ticket is booked successfully with the flight number 1027.

USER: Thank you very much for your help.

ASSISTANT: Thank you Williams for contacting us.