You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am a scientist, I am planning to visit space center Houston.

ASSISTANT: That's great, could you please mention your details of travel?

USER: Could you help me to book a ticket from EWR to IAH? I am travelling on 05/25 and 05/27.

ASSISTANT: Ok, may I know your dates of journey. Ok.

USER: My name is Lisa Jones.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: The flight with connection 1 of cost 100 and number 1027 of airline JetBlue has found. Shall I reserve your ticket?

USER: Please book my ticket.

ASSISTANT: Your ticket has booked.

USER: Thank you for helping me.

ASSISTANT: You are welcome.