You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you now?

USER: I am planning to visit Houston, can you please book me a ticket from DCA to IAH?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable departure and return dates of travelling?

USER: I prefer to depart on Aug 11 and would like to return on Aug 13.

ASSISTANT: Can I know your name to book the flight ticket?

USER: My name is David Martinez.

ASSISTANT: Do you have any connection preference?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I am ok with any timings.

ASSISTANT: Any other requirements do you have?

USER: No, thanks for asking.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure, I will wait for your information.

ASSISTANT: There is a flight available with a ticket price 100 and the connection is 1 with Hawaiian airline. Would you like me to proceed with the booking?

USER: That's ok for me. Please reserve my ticket in this flight.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1001.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for contacting us, have a great journey.