You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me to book a flight ticket from IAD to OAK?

ASSISTANT: Sure, I am here to assist you. Can you please let me know your travel dates?

USER: My journey dates are Oct 28 to Oct 30.

ASSISTANT: Ok, may I know your class preference?

USER: I want to flight in economy class.

ASSISTANT: May I know your name?

USER: My name is Linda Thomas.

ASSISTANT: Do you have any other preferences?

USER: I need a single connection of flight.

ASSISTANT: As per your requirements, there is a flight available in UA airlines and the ticket fare is 300 only. Can I book the ticket for you?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed with the flight-1027 in economy class.

USER: Thank you.

ASSISTANT: You are welcome and have a safe journey.