You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Can you please hold me a flight ticket in the name of Deborah Harris?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Kindly assign your preferred dates of travelling?

USER: My travel dates are 07/21 - 07/23.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: I want to fly from Chicago, IL - ORD to reach Seattle, WA - SEA.

ASSISTANT: We found a Hawaiian Airline, flight number:1018 and the price is 100.

USER: Please reserve.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.