You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Steven Harris.

ASSISTANT: How can I aid you?

USER: Can you help me in booking on 07/19 to 07/21, owing an emergency?

ASSISTANT: Sure, We are here to help you. Please provide me your airport codes.

USER: My source is BOS and destination DCA.

ASSISTANT: Do you need any stop over?

USER: I need a connecting flight.

ASSISTANT: We found a Hawaiian airline, flight number:1004 and the price is 100.

USER: You can book it.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.