You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Stephen Baker here.

ASSISTANT: How may I guide you today?

USER: I want to book a flight from DCA to DEN with a single stop, can you please help me in booking a flight ticket?

ASSISTANT: Sure, I will help you with that.

USER: Sure, my travel dates are from 08/26 to 08/28.

ASSISTANT: Can you please share your preferable journey dates? Ok. Please wait for a minute.

USER: Sure.

ASSISTANT: I found a ticket for you with price of 300, flight number is 1006 and connection is 1. Is it ok for you?

USER: Can you please search a flight with price 200?

ASSISTANT: I am sorry to say that there is no flight found with that price.

USER: That's ok, no problem. Anyway thank you for the information.

ASSISTANT: Thank you for reaching us.