You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Joshua Lopez.

ASSISTANT: How can I help you?

USER: Can you help me in booking from IAD to OAK?

ASSISTANT: Sure, I am here to help you. Please share your travelling dates.

USER: My travelling dates are from Oct 6 to Oct 8.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need.

ASSISTANT: Is there any another specifications on your trip?

USER: No.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight with number 1020 and airline Southwest at a price of 100 with 1 connection. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Sure, your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a good day.