You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Benjamin Scott.

ASSISTANT: How can I be your helping hand?

USER: I want to book a direct flight to visit my grandparents. Can you help me with this booking?

ASSISTANT: Sure, may I know your location codes?

USER: AZ-PHX and TX-HOU are my airport codes.

ASSISTANT: Can I have your travel dates?

USER: 09/15 and 09/17 are my travelling dates.

ASSISTANT: I found a flight from Spirit airlines with fare of 100. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your flight has been reserved with 1029 flight number.

USER: Thank you for your response.

ASSISTANT: Thanks for reaching us.