You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Can you book a flight ticket in my preferable travel dates June, 17 and June, 19?

ASSISTANT: Sure, may I know your airport codes?

USER: EWR and IAD are my airport codes.

ASSISTANT: Do you have any connection limit?

USER: I would prefer single connection.

ASSISTANT: Any other preferences?

USER: I need to travel in economy class.

ASSISTANT: May I know your name?

USER: Nicole Lopez here.

ASSISTANT: You have a connecting flight 1015 in Delta airlines and price 100 in economy class, Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been processed and it will be send to your Email-Id shortly.

USER: Thank you.

ASSISTANT: Thank you.