You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I want to book a ticket from DCA to EWR, can you help me?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My travel dates are 06/27 and 06/29.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Sure.

ASSISTANT: Yes, I have found a flight in Delta airlines with connection 1 and price 100, is it ok for you?

USER: Book the ticket in the name of Ronald Garcia.

ASSISTANT: Ok Ronald Garcia, I have reserved a ticket with flight number 1007.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us, have a great journey.