You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to book a ticket from OAK to SFO, can you please help me out?

ASSISTANT: Sure, I am happy to help you with the ticket booking. May I know your name please?

USER: Thomas Jackson here.

ASSISTANT: Please send me your planned travel dates.

USER: I am travelling on these dates Jan 16th and 18th.

ASSISTANT: Ok, please mention your connection limit preference.

USER: I need a single connected flight.

ASSISTANT: Ok, do you have any other preferences?

USER: I prefer business class.

ASSISTANT: Sorry to tell you that, I have not found any flight in this route with the dates you have given.

USER: Ok no problem, thank you for your services.

ASSISTANT: Most welcome. Thank you for reaching us.