You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Can you aid me to book flight ticket from IAH to EWR?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My trip dates are Apr 19 and Apr 21.

ASSISTANT: Can I know your specifications in airlines?

USER: I am comfortable with any airline.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Can I know your timing preferences?

USER: I am flexible with any timings.

ASSISTANT: May I know your name please?

USER: Anna Martin here.

ASSISTANT: There is a flight with connection 1 and price 100 with flight number 1019, can I proceed?

USER: Please make sure that class preference should be in economy.

ASSISTANT: Yes we have, can I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked with economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.