You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jessica Allen here.

ASSISTANT: Allen, how can I assist you today?

USER: Can you make my reservation from DCA to OAK?

ASSISTANT: Sure, can you please let me know your travel dates?

USER: My travelling dates are from 05/18 to 05/20.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: There is a flight with 1 connection in Delta airlines and the ticket costs you 200 only. Shall I book the ticket for you?

USER: Please book it.

ASSISTANT: Your ticket is booked with the flight-1015.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.