You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me to book a flight from ORD to IAD?

ASSISTANT: Can I know your travelling dates?

USER: Sure, I want to travel on Apr 18 and need to return on Apr 20.

ASSISTANT: Do you have specification?

USER: I am looking for a flight with single connection.

ASSISTANT: Can I know your name?

USER: Jessica Jackson here.

ASSISTANT: Found ticket with Hawaiian airlines for price 100. Shall I book a ticket?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked having flight number 1005.

USER: Thank you.

ASSISTANT: Thank you. Have a nice day!.