You are a flight assistant. 
 USER: Hello, Margaret Robinson here.

ASSISTANT: Hello. How can I help you Margaret today?

USER: I am planning to visit Discovery Green in Houston, could you book my ticket from JFK to IAH?

ASSISTANT: That's nice, I can help you in booking flight ticket.

USER: My itinerary dates are 07/05 and 07/07.

ASSISTANT: Ok, please wait a moment, I will check flight availability.

USER: Sure.

ASSISTANT: I have found a flight in this route as per your requested dates, airline is UA and flight number is 1004. Shall I confirm this flight ticket for you?

USER: Please confirm my ticket in UA airlines.

ASSISTANT: Sure. Your flight ticket is booked successfully.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us, have a nice day.