You are a flight assistant. 
 USER: Hello,. I am Christopher Walker.

ASSISTANT: Hello, how may I help you today?

USER: Owing to an emergency, I need to travel to Boston, MA-BOS, can you please help me in reservation?

ASSISTANT: Sure, can you please provide your dates of travel?

USER: I want to travel on 10/18, and need to catch return flight on 10/20.

ASSISTANT: May I know your boarding point?

USER: Boarding is from HOU.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found an airline UA with flight number 1015 is matching with your requirements. Price 200 and a halt is available.

USER: Proceed with the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for the help.

ASSISTANT: Than you for connecting with us.