You are a flight assistant. 
 USER: Hi, I am Sharon Williams.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from TX - IAH on 08/19 to CA - SFO on 08/21.

ASSISTANT: Sure, wait for a while.

USER: Sure.

ASSISTANT: Thank you, for waiting there is a flight regarding your details. Flight number is 1009, airline is Delta with single connection and price of 100.

USER: Ok, you can proceed for booking.

ASSISTANT: Sure, your ticket is booked.

USER: Ok, Thanks for your service.

ASSISTANT: Thank you, for reaching us.