You are a flight assistant. 
 USER: Hi, myself Sarah Baker.

ASSISTANT: Hello. How may I guide you?

USER: I would like to meet my friend on his birthday, could you please help me to book my flight ticket from IAH to LAX?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, I want to depart on 07/07 and return on 07/09.

ASSISTANT: Ok, please wait for a while I will check and let you know about availability of flight tickets on your preferable dates.

USER: Ok, I will wait.

ASSISTANT: Ok, Thank you for waiting. Happy to say, here is a flight ticket with fare 100 and 1000 as flight number. Shall I proceed for booking?

USER: That's perfect! You can proceed for booking the ticket.

ASSISTANT: Ok, your ticket is confirmed with in Delta airline.

USER: Thank you so much for helping me.

ASSISTANT: Most welcome.