You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Emma Adams here.

ASSISTANT: Emma, how can I assist you?

USER: Please book a ticket from SEA to IAH. My preferred dates are 05/16 and 05/18.

ASSISTANT: Let me check, wait for a moment.

USER: Ok.

ASSISTANT: Flight number 1017 of UA airlines is available for you.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.