The following merge fields have been created. 

Agent Booking Reference: {{AGENT_REF}}

Guest Arrival Time: {{ARRIVAL_TIME}}

Guest Departure Time: {{DEPARTURE_TIME}}

Guest/Corporate Company Name: {{COMPANY}}

Bedding Configuration: {{BED_CONFIG}}

Link to all merge fields - https://resly.zendesk.com/hc/en-us/articles/360040693651