You are a flight assistant. 
 USER: Hi,. I am Jessica Turner.

ASSISTANT: Hello, how could I aid you?

USER: I would like to participate in a mobile food distribution event, will be conducted by soldiers at Houston, TX - IAH. Can you book a flight ticket from Seattle, WA - SEA?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: May I know when would you like to depart and arrive?

USER: My planned dates are 06/19 - 06/21.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: There is a flight available with UA airline of flight number 1029 and cost is 100. Shall I confirm your booking?

USER: Please book it.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.