You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you please book a flight ticket from IAD to HOU?

ASSISTANT: May I know your name please?

USER: Jeffrey Smith here.

ASSISTANT: Tell me your travel dates please?

USER: My trip dates are 02/23 and 02/25.

ASSISTANT: Are you looking for a stopover in your journey?

USER: I am comfortable to travel in a single connecting flight.

ASSISTANT: Any other preferences?

USER: I prefer to travel in economy class.

ASSISTANT: Please wait.

USER: Sure, take your time.

ASSISTANT: Thanks for your patience. I have found Frontier airlines which is a stopover flight.

USER: Please proceed for booking.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1000.

USER: Thank you for your help.

ASSISTANT: Thank you.