You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Christine Adams.

ASSISTANT: How can I help you?

USER: We friend's planned a trip to Oakland, can you please help with booking a ticket?

ASSISTANT: Sure, can I know your airport codes please?

USER: The airport codes are DCA and OAK.

ASSISTANT: Can I know your travel dates please?

USER: The travelling dates are 08/08 and 08/10.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: I found a flight for you with flight number 1021 and airline is UA.

USER: Ok, confirm the ticket.

ASSISTANT: I have booked your ticket.

USER: Thank you for your response.

ASSISTANT: Thank you for reaching us, have a safe journey.