You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you at this moment?

USER: Myself Rebecca Phillips, I am planning to attend franchise meeting at Chicago. Can you please help me in reserving the ticket from OAK to ORD?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: I am willing to travel on 12/19 and again I will retrieve on 12/21.

ASSISTANT: Can I have a moment please?

USER: Sure, I will wait for your kind response.

ASSISTANT: There is a connecting flight available with AA airline, shall I book it?

USER: What about the cost?

ASSISTANT: It's cost is 200.

USER: Yes, please go ahead and reserve the ticket.

ASSISTANT: Your booking is done with flight number 1018. Happy journey.

USER: Thank you very much for reserving the ticket.

ASSISTANT: You are welcome, have a nice day.