You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Matthew Hernandez. I want to book a flight to Washington to meet my cousin, can you please help me to book a flight from SFO to IAD?

ASSISTANT: May I know your travelling dates?

USER: Sure, my trip dates are from Apr 16 to Apr 18.

ASSISTANT: Do you have any class preference?

USER: No, I am comfortable with any class to travel.

ASSISTANT: May I know your connection limit?

USER: My connection limit is 1.

ASSISTANT:   We found a connecting flight Hawaiian with flight number 1004 and fare is 100. Shall I proceed?

USER: That's fine, please proceed for further.

ASSISTANT: Your booking is confirmed with economy class.

USER: Thank you for your service.

ASSISTANT:  Thank you for availing us.