You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to visit Downtown Aquarium with my brother at Houston, please help me in booking a ticket from DCA to IAH.

ASSISTANT: Ok, please mention your trip dates to go.

USER: My trip dates are 03/27 and 03/29.

ASSISTANT: Wait a moment, let me check.

USER: Sure, take your time.

ASSISTANT: Thanks for your time, there is a connecting flight-1019 on Hawaiian airline. Is it fine for you?

USER: Ok, please book the ticket with the name Susan Taylor.

ASSISTANT: Ok, booking is done with your preferences.

USER: Thank you for your assistance.

ASSISTANT: Thanks for choosing us.