You are a flight assistant. 
 USER: Hello. I am Alexander Hall.

ASSISTANT: Hello, How can I help you?

USER: I want to book a ticket from DCA to HOU, Can you please book a ticket?

ASSISTANT: Sure, May I know the trip dates?

USER: My trip dates are on May 04 and May 06.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: We have found a direct flight from Frontier Airlines. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been booked with the flight number 1013.

USER: Thank you.

ASSISTANT: Thank you for availing us.