You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I have to book a flight ticket from Dallas & Fort Worth, can you please help me to find a flight?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Thank you. I am willing to travel on the dates of Nov 6th and Nov 8th.

ASSISTANT: Please provide your airport codes.

USER: The origin and destination airport codes are DFW and PHX.

ASSISTANT: Do you have any specifications?

USER: I need a flight which is departing in the evening time.

ASSISTANT: Do you have any other preferences?

USER: The connection limit in between my journey should be at least 1.

ASSISTANT: Please provide your name.

USER: My name is Rachel Edwards.

ASSISTANT: There are no flights found under your preferable details.

USER: It's ok, not a problem with that. I will choose any other source to travel. Thank you for your time.

ASSISTANT: Welcome, have a great day.