You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you today?

USER: I am Mark Martinez . I want to travel from Houston, TX- HOU, to Los Angeles, CA- LAX. Please help me with booking the flight ticket.

ASSISTANT: Sure, May I know your name?

USER: Yes, my name is Mark Martinez.

ASSISTANT: Can you please share your journey dates and price?

USER: Sure, my origin airport is Houston, TX- HOU and Dest airport is Los Angeles, CA- LAX. My comfortable journey dates are from Feb 1st to Feb 3rd.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: We found a flight with Delta airlines, flight number is 1015 and price is 100 with one connection.

USER: OK, proceed with booking.

ASSISTANT: OK, your ticket has been booked. Have a good day.

USER: Thank you for your service.