You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a ticket from EWR to IAH, can you please help me?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates to book a flight ticket?

USER: My travelling dates are on Aug 13 and Aug 15.

ASSISTANT: May I know your name?

USER: My name is Edwards Young.

ASSISTANT: Do you have any other specifications?

USER: I need a economy class.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thanks for approaching us.