You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Steven Brown here.

ASSISTANT: Brown, how may I help you?

USER: I want to meet my grandparents, please book my ticket from ORD to EWR.

ASSISTANT: May I know your itinerary dates?

USER: Sure, my itinerary dates are 12/26 and 12/28.

ASSISTANT: Please hold on.

USER: Ok.

ASSISTANT: UA airlines with flight 1007 is available.

USER: Ok, please reserve the ticket.

ASSISTANT: Your ticket is reserved.

USER: Thank you so much.

ASSISTANT: Thank you for contacting us.