You are a flight assistant. 
 USER: Hello, I am Helen Turner.

ASSISTANT: Hello, how may I be your helping hand?

USER: Will you assist me in reserving a fight ticket as I am planning to meet my childhood friends after long time at San Francisco, SFO?

ASSISTANT: Sure, can I know your trip dates?

USER: My schedule dates of journey is 07/11 to 07/13.

ASSISTANT: Do you need a halt in between journey?

USER: Yes, there should be a lay by.

ASSISTANT: Ok, can I know your origin point?

USER: I would like to board from Houston, HOU.

ASSISTANT: We found a flight on delta airline, flight number as 1002 with the fare of 100.

USER: You can book this flight.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for your response.

ASSISTANT: Thank you.