You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nicholas Nelson.

ASSISTANT: How may I aid you today?

USER: I want to book a connecting flight ticket to take a part in cultural fest at CA. Can you help me?

ASSISTANT: Sure, please let em know your planned travelling dates to proceed further.

USER: Thank you. July 30th and Aug 01st are my travelling dates.

ASSISTANT: Kindly share your source and destination airport codes.

USER: OAK and SFO are my airport codes.

ASSISTANT: Could you please let me know if your preferable timings to travel?

USER: I need to return in the evening.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for sharing your journey details, we found a economy class ticket in Southwest airline with flight number-1002. Shall I book the ticket?

USER: You can reserve it for me.

ASSISTANT: Your ticket has been confirmed with the connecting flight and your return time will be in the evening.

USER: Thank you for your help.

ASSISTANT: Thank you for your choosing us.