You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I aid you?

USER: I am Samuel Jones. Me and my friend's were planning to visit the Galleria for shopping which is in Houston.

ASSISTANT: Ok.

USER: Will you help me for getting a flight ticket?

ASSISTANT: Sure, help me with the travelling dates.

USER: I want to depart on 04/19 and arrival on 04/21.

ASSISTANT: Can you share your airport codes?

USER: My travelling starts from Phoenix AZ-PHX and ends on TX-HOU.

ASSISTANT: There is a flight in airline AA with number 1022..

USER: You can continue with booking.

ASSISTANT: Your ticket is booked, happy journey.

USER: Thank you for helping me out.

ASSISTANT: Thank you for opting us.