You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking my flight ticket from HOU to DEN?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned travel dates are April 21-23.

ASSISTANT: May I know your connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I want to depart in the evening.

ASSISTANT: May I know your good name?

USER: Jacob Hernandez.

ASSISTANT: We found an airline: Frontier, flight number: 1000 and price is 400 with one connection.

USER: Ok, please go ahead.

ASSISTANT: Shall I proceed to booking?

USER: Please go ahead.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.