You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself David Hill.

ASSISTANT: How may I aid you?

USER: Will you help me in booking the flight ticket from HOU to SFO?

ASSISTANT: Sure, may I know your preferable travel dates of your journey?

USER: My travelling dates are 05/18 and 05/20.

ASSISTANT: Please wait for a moment to search for the flight.

USER: Ok, I will wait for your response.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by Spirit airlines. Shall I proceed with this?

USER: Sure, you can proceed with the booking.

ASSISTANT: Hill, your ticket has confirmed in the flight-1019 to reach your destination.

USER: Thank you for helping us.

ASSISTANT: You are most welcome and have a happy journey.