You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I'm Shirley Roberts here.

ASSISTANT: How can I assist you Roberts?

USER: I would like to travel to Phoenix, can you please help me to reserve my ticket from TX-IAH on 01/04?

ASSISTANT: Sure, could you please share your return date and destination airport code?

USER: Sure, my destination airport code is AZ-PHX and my return date is on 01/06.

ASSISTANT: Please wait for a while.

USER: Ok, please make sure that price should be within the limits of 500.

ASSISTANT: Yes Roberts, I found a direct flight for you with JetBlue airline in your route. Shall I book?

USER: But my connections limit is 1 please check it.

ASSISTANT: Sorry Roberts, no flight available as per requested dates.

USER: No problem.

ASSISTANT: Thank you for using our service.

USER: Thank you for your service.

ASSISTANT: You are welcome.