You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: My concern is regarding the flight ticket booking from EWR to HOU. Can you help me with the booking?

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

USER: Ok, please book a ticket for the dates Apr 26 and 28.

ASSISTANT: May I know your name?

USER: My name is Susan King.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight.

ASSISTANT: Ok, wait for some time I will check and get back to you.

USER: Ok, please check for a economy class flight.

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

USER: That is ok, thank you for assisting me.

ASSISTANT: Thanks for approaching us.