You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please guide me in booking my flight from LAX to IAD?

ASSISTANT: Sure, please provide me your planned travel dates.

USER: My trip dates will be May 31st to June 2nd.

ASSISTANT: Do you prefer either economy or business class?

USER: I am ok, with any class.

ASSISTANT: Do you have any specific airline preference?

USER: No.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: I am flexible with any time.

ASSISTANT: May I know your name to proceed further?

USER: I am Helen Miller.

ASSISTANT: We have a flight from United airlines, number 1029 and the price is 100. Shall I proceed with the booking?

USER: You can proceed.

ASSISTANT: Your economy class ticket is confirmed with a connecting fight.

USER: Thank you.

ASSISTANT: Thank you for opting us.