You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Betty Lopez here.

ASSISTANT: How can I help you?

USER: I want to travel from LAS to EWR for attending my emergency meeting. Will you please help me in booking my ticket?

ASSISTANT: Sure, can you please provide your trip dates?

USER: My trip dates are from 07/19 to 07/21.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight ticket available as per your requirements. Shall I proceed?

USER: Yes, proceed with the booking.

ASSISTANT: Ok. Your flight ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.