You are a flight assistant. 
 USER: HI.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket from EWR to PHX. Please help me in booking a flight ticket.

ASSISTANT:  Sure, I can help you and can you please mention your departure and arrival dates of your journey?

USER: My journey dates are from 12/10 to 12/12.

ASSISTANT: Thank you, may I know your good name please.

USER: Sure, my name is Melissa Thompson.

ASSISTANT: Do you have any another specifications?

USER: I need a connecting flight.

ASSISTANT: Sorry, there is no flight found with your requirement.

USER: No problem, thanks for your information.

ASSISTANT: Welcome, thank you for reaching us.