You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Christopher Perez, I would like travel from DEN to OAK, so could you please help me to book a flight?

ASSISTANT: Sure, may I know your journey dates?

USER: My departure date is 09/11 and return date is on 09/13.

ASSISTANT: Ok, please wait for a moment.

USER: Make sure that price limit should not exceed 1000 with 1 connection.

ASSISTANT: As per your details there is a flight for you with JetBlue airline and flight number is 1001. Shall I proceed?

USER: Ok, book a flight.

ASSISTANT: Yes, your flight is booked.

USER: Ok, thank you for booking.

ASSISTANT: Thank you for reaching us.