You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am David Lopez.

ASSISTANT: How can I assist you?

USER: I am planning to travel New York to meet my manager, can you please help me to book a flight ticket from IAH to LGA?

ASSISTANT: Sure David, can I know the travel dates please?

USER: Sure, my itinerary dates are from 07/06 to 07/08.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your time.

ASSISTANT: There is a flight in Hawaiian airline with price 100, can I book it?

USER: That's ok, please go ahead for booking.

ASSISTANT: Your ticket has been booked with flight number 1028.

USER: Thank you for assisting me.

ASSISTANT: Thank you for approaching us.