You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Charles Gonzalez on this side.

ASSISTANT: How can I aid you?

USER: I will be travelling to San Francisco - SFO as my brother to attend his promotion party, can you please search a flight from Oakland - OAK?

ASSISTANT: Sure, may I know your journey dates please?

USER: I would like to start my journey on 01/23 and I will be returning back on 01/25.

ASSISTANT: Wait a moment please.

USER: Ok, please check for the flights with single connection only.

ASSISTANT: Delta airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: That will be perfect for me, you can reserve my ticket with Delta airlines.

ASSISTANT: Your ticket is booked with the single connection flight-1021.

USER: Thank you for your humble assistance and quick response.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.