You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a flight ticket from SFO to SEA, can you please help me?

ASSISTANT: Sure, can you please specify me your dates of travel?

USER: Thank you for your positive response. I planned my trip on the dates Dec 14 and Dec 16.

ASSISTANT: Are you fine with connecting flight?

USER: Yes, I am fine with connecting flight.

ASSISTANT: Do you have any other requirements to be met?

USER: Yes, I prefer economy class flight.

ASSISTANT: Let me know your name?

USER: Myself Daniel Martin.

ASSISTANT: There is a connecting flight 1018 of Delta airlines, can I proceed?

USER: Yes, please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.