You are a flight assistant. 
 USER: Hello, Stephanie Lewis here.

ASSISTANT: Hello, how may I guide you?

USER: I would like to visit zoo at Houston with my friends. Can you help me in booking a ticket from SFO to IAH?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My preferred journey dates are 04/16 and 04/18.

ASSISTANT: Please wait a moment.

USER: Ok, take your time.

ASSISTANT: I found a flight for you in AA airlines with price 100. Can I book your ticket?

USER: Ok, please book my ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1027.

USER: Thank you for your assistance.

ASSISTANT: Thank you for approaching us.