You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am planning to travel from SEA to SFO, help me in booking a flight?

ASSISTANT: Let me know your travelling dates?

USER: My travelling dates are June 14 to 16.

ASSISTANT: Is there any airline preference?

USER: No.

ASSISTANT: Do you have any class preference?

USER: Sorry.

ASSISTANT: Can I know your name?

USER: I am Daniel Perez.

ASSISTANT: Connecting flight can be booked with Southwest airlines for price 100.

USER: Proceed for booking.

ASSISTANT: Ticket is booked having flight number 1001.

USER: Thank you.

ASSISTANT: Thank you.