You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jack Lee here.

ASSISTANT: What can I do for you?

USER: I want to book a ticket from DCA to SEA for a vacation.

ASSISTANT: Please share your travel dates?

USER: My travelling dates are from 07/12 to 07/14. If there is 1 connection limit, please proceed.

ASSISTANT: Flight-1028 with Delta airlines is available, shall I proceed for booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thanks for reaching us.