You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Ruth Collins.

ASSISTANT: Collins, how can I help you?

USER:  I want to book a ticket from HOU to PHX, can you help me?

ASSISTANT: Sure, can you please provide me your trip dates?

USER: I would like to go on 12/23 to 12/25.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: There is a flight available with UA airlines, shall I book the ticket?

USER: Please book my ticket.

ASSISTANT: Your ticket is booked with the flight-1015.

USER: Thank you so much.

ASSISTANT: Thank you for choosing us.