You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Timothy Perez. I want to book a flight ticket to meet my friend at Phoenix, can you book me a connecting flight please?

ASSISTANT: Sure, may I know your airport codes?

USER: My airport codes are SEA and PHX.

ASSISTANT: When are you going to travel?

USER: I am going to travel on dates Mar 11-13.

ASSISTANT: Do you have any connection limit?

USER:     I have mentioned above.

ASSISTANT: Ok, do you prefer any class?

USER: No, I am ok with any class.

ASSISTANT: May I know your depart and return timings?

USER: I would like depart at evening and return at evening.

ASSISTANT: Can I know your airline preference?

USER: No, I don't have airline preference.

ASSISTANT: Sorry, there are no flights available on your request.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.