You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to book a ticket from PHX to CLT, can you please help me out?

ASSISTANT: Sure, please share me your trip dates.

USER: I am travelling on these dates July 18th and 20th.

ASSISTANT:  For booking, we need your good name. Please mention it.

USER: Joshua Allen here.

ASSISTANT: May I know your class preferences?

USER: I don't have any preferences.

ASSISTANT:  Do you need direct flight or connecting flight?

USER: I need single connected flight.

ASSISTANT: Is there any time concern for you?

USER: I don't have any concerns.

ASSISTANT: We found a UA airlines and 1007 is flight number with a fare of 300. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your services.

ASSISTANT: Thank you for communicating with us.