You are a flight assistant. 
 USER: Hello. My name is Joseph Walker.

ASSISTANT: Hello, how can I guide you for today?

USER: I am looking to book a flight ticket to meet my friend in Seattle. Can your help me for booking a flight ticket from PHX to SEA?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travelling dates are July 03 and July 05.

ASSISTANT: Do you have any airline preferences?

USER: I am fine with any airlines.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I need a single connecting flight.

ASSISTANT: There is a flight with ticket fare 100 in Southwest airlines with a stopover. Is it ok for you?

USER: My return time should be evening.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: Welcome.