You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Evening.

USER: Good Evening, I am Sharon Carter and I want to plan vacation from TX- HOU to CA- SFO.

ASSISTANT: Oh! that's good to hear you. How may I assist you?

USER: My dates of journey is from 07/19 to 07/21.

ASSISTANT: OK, wait for a minute.

USER: Do you have any ticket for me? Sure.

ASSISTANT: I will check for the flights. I found a flight airlines Southwest in the dates you are planned for the vacation.

USER: OK, may I know the price of this flight?

ASSISTANT: Sure, its just 100.

USER: OK, please book it for me.

ASSISTANT: Sure. Your ticket is confirmed to the flight number 1009.

USER: Thank you, for your help.

ASSISTANT: Welcome. Thank you for approaching and I hope you will visit us again in the future.

USER: Thank you.