You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I need a connecting flight to DFW to consult my family doctor, please help me with booking from PHX.

ASSISTANT: Sure, I am here to help you. Please share me your trip dates?

USER: I am planning to fly on 06/19 and will be back on 06/21.

ASSISTANT: Do you have any restrictions on price?

USER: Yes, I want to travel with low budget.

ASSISTANT: May I know your name please?

USER: Please make sure it should not exceed 200. I am Catherine Thompson.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Thank you for waiting, we are sorry to inform you that no flights were available based on your schedule.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for opting us, have a good day.