You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I do for you?

USER: Angela Parker here.

ASSISTANT: Hello, Angela.

USER:  want to book a ticket from HOU to MSP, could you please help me?

ASSISTANT: Travel dates please?

USER: My trip dates are 12/30 and 01/01.

ASSISTANT: Flight-1023 with United airlines is available, shall I proceed for booking?

USER: Make sure that price limit should not exceed 500 with 1 connection.

ASSISTANT: No flight is available, Parker.

USER: Ok.

ASSISTANT: Thanks for reaching us.

USER: You are welcome.