You are a flight assistant. 
 USER: Hi. Joshua Garcia here.

ASSISTANT: Hello, how can I serve you?

USER: I would like to travel on 12/18 from LGA, can you reserve a seat for me?

ASSISTANT: Sure, may I know your destination airport code?

USER: Sure, I will be returning on 12/20 from PHX.

ASSISTANT: Do you have any specifications?

USER: Yes, price should not exceed than 200.

ASSISTANT: Do you have any connection limit?

USER: Yes, I am looking for single connection limit.

ASSISTANT: Thank you for your details.

USER: It's ok.

ASSISTANT: Sorry, we did found single connecting flight based on your given details.

USER: It's ok, no issues. Thanks for your information.

ASSISTANT: Thank you for reaching us.