You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jessica Miller here.

ASSISTANT: How can I assist you today?

USER: Can you book me a ticket from DCA to DCA?

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

USER: Ok, here are my preferred travelling dates 06/07 and 06/09.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

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

USER: Please book my ticket now.

ASSISTANT: Ok Miller, I have confirmed a ticket with flight number 1010.

USER: Thank you for the help.

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