You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I would like to book a flight ticket from Washington, to visit Grauman's Chinese Theatre with my college friend's in Los Angeles. Would you please help me in booking a flight ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you please share your travel dates?

USER: My travel dates are May 17th and May 19th.

ASSISTANT: Do you have any connection preferences?

USER: I prefer to travel in single connection.

ASSISTANT: Do you have any airline preferences?

USER: No.

ASSISTANT: May I know your class preferences?

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

ASSISTANT: Are you looking for any preferred time to travel?

USER: No.

ASSISTANT: Please wait a moment while I check.

USER: Sure.

ASSISTANT: Can you please share your nearest airport codes for depart and arrival?

USER: My airport codes are from DCA to LAX.

ASSISTANT: May I know your name please?

USER: Helen Rodriguez.

ASSISTANT: United Airlines is providing the connecting flight in economy class and the fare of 200.

USER: Please proceed with the booking.

ASSISTANT: Your reservation is confirmed with the flight number 1007.

USER: Thank you.

ASSISTANT: Thank you.