You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Catherine Rodriguez.

ASSISTANT: Catherine Rodriguez, how may I aid you?

USER: I want to book a flight ticket within 200. Can you help me?

ASSISTANT: Sure, please provide your itinerary dates.

USER: Thank you. 03/12 and 03/14 are my travelling dates.

ASSISTANT: May I know your genesis and terminus airport codes?

USER: LAS and PHX are my airport codes.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: UA airlines with flight 1022 is providing service with a connecting flight.

USER: You can reserve it for me.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.