You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a ticket from EWR to IAH to attend seminar, can you help me in booking?

ASSISTANT: Sure, may I know your trip dates?

USER: I am departing on May 10 and return on May 12.

ASSISTANT: Do you have any connection limits?

USER: I prefer a connecting flight.

ASSISTANT: Any other requirements to be met?

USER: I want a normal-cost flight.

ASSISTANT: May I know your name?

USER: My name is Lisa Perez.

ASSISTANT: United airlines flight- 1027 of price 100 with connection in economy class matches your given details, shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.