You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Could you book my ticket in a connecting flight?

ASSISTANT: Sure, may I know your airport codes?

USER: My genesis and terminus airport codes are AUS and DCA.

ASSISTANT: When do you like to travel?

USER: My itinerary dates are Dec 24 and Dec 26.

ASSISTANT: Do you have any specifications?

USER: I have no other specifications.

ASSISTANT: Please share me your name.

USER: Lisa Collins here.

ASSISTANT: Flight-1003 is available with Hawaiian airlines having single connection and the ticket costs you 100 only in economy class. Are you comfortable with this flight?

USER: Please book my ticket.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your service.

ASSISTANT: Thank you.