You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your name please?

USER: I'm john Thomas, I am planning to visit Washington I am searching flight ticket from last 2 weeks.So can you please help me in booking my ticket?

ASSISTANT: Sure, I will help you. Please share your travel dates?

USER: Ok, my trip dates are 07/25 and 07/27.

ASSISTANT: From which airport you want to travel?

USER: I want to start my journey from HOU and my destination code is DCA.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Flight-1004 with Frontier airlines is available, with connection limit 1 and fare 100, is it ok for you?

USER: Ok, you can proceed.

ASSISTANT: Ticket is booked, flight number 1004.

USER: Ok, fine thank you for your help.

ASSISTANT: You are welcome.