You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a ticket from IAH to OAK to attend seminar, can you help me in booking?

ASSISTANT: Yes, can you share me your travelling dates?

USER: I am departing on June 20 and return on June 22.

ASSISTANT: Do you have any preferences?

USER: I do not have any other specifications.

ASSISTANT: I have found an economy class ticket with a price of 100 and 1 connection.

USER: Please proceed for booking.

ASSISTANT: Can I know your name for booking?

USER: My name is Emma Taylor.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.